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Welcome, this is the New England Journal
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of Medicine. I'm Dr. Lisa
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Johnson. This week, November
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30, 2023,
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we feature articles on
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levothyroxine for unstable brain-dead
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heart donors, amivantamab
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in lung cancer
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with EGFR-exon-20 insertions,
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amikacin to prevent
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ventilator-associated pneumonia, and
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tarlatamab in small-cell lung
0:28
cancer, a new
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series on wearable digital health
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technology with a review article
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on digital technology for diabetes,
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a case report of a man with sickle
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cell disease and right hip pain, and
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perspectives on coverage for
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emerging technologies, on
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methadone clinic engagement and cancer
0:49
care, and on learning
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from the bomb. A
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new clinical decisions addresses the
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approach to menstrual migraine with
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aura. A woman who
1:01
has chronic migraines with aura comes
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to the clinic to discuss her
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headaches. The headaches usually occur around
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the time of her menses. This
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clinical decisions offers a case
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vignette accompanied by two essays,
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one supporting prescription of oral
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combined contraceptive pills and the
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other recommending against it. We
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want to know what you decide.
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Visit nejm.org to
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vote. Intravenous
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Levothyroxine for Unstable
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Brain-Dead Heart Donors
1:36
by Rajat Dar, from
1:38
Washington University School of Medicine,
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St. Louis, Missouri. Hemodynamic
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instability and myocardial dysfunction
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are major factors preventing
1:49
the transplantation of hearts
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from organ donors after
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brain death. Intravenous
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Levothyroxine is widely used
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in donor care. On
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the basis of observational
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data suggesting that more
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organs may be transplanted
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from donors who receive
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hormonal supplementation. In this
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trial involving 15 organ
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procurement organizations in the United
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States, 838 hemodynamically
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unstable potential heart donors
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were randomly assigned within
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24 hours after
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declaration of death according
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to neurologic criteria to
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open label infusion of
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intravenous levothyroxine or saline
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placebo. Hearts were transplanted
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from 230 donors 54.9% in the levothyroxine group
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and 223 53.2% in
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the saline group. Graft survival
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at 30 days occurred in 97.4%
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of hearts transplanted
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from donors assigned to receive
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levothyroxine and 95.5% of hearts
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transplanted from donors assigned
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to receive saline. There
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were no substantial between-group
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differences in weaning from
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vasopressor therapy, ejection fraction
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on echocardiography or organs
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transplanted per donor but
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more cases of severe hypertension
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and tachycardia occurred in the
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levothyroxine group than in the
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saline group. In
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hemodynamically unstable brain dead
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potential heart donors intravenous
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levothyroxine infusion did not
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result in significantly more
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hearts being transplanted than
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saline infusion. Karen
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Koush from Stanford University School
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of Medicine, California writes
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in an editorial that this
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trial had several limitations including
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no blinding of the trial
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personnel with respect to trial
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group assignments, a lack of
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centralized interpretation of donor
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echocardiograms and a lack
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of standardization of concomitant
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donor medical therapies. Even
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so, this study provides the
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most definitive data to date
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about donor thyroid hormone replacement
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therapy. The results
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have major clinical implications
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for organ procurement organizations,
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OPOs, around the country.
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Data from the United Network for Organ Sharing
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show that 48% of
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all potential organ donors and 55%
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of donors with left ventricular
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dysfunction were treated with levothyroxine
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from 2015 to
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2022. Overall,
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almost half the OPOs in
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the United States routinely administer
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thyroid hormone during donor care.
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Perhaps the most remarkable aspect of
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this trial is that it was
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performed at all. Conducting
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research that involves organ
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donors, particularly randomized controlled
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trials, is fraught with
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challenges. These include
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recruitment of participating OPOs,
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which often do not have
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dedicated staff or resources for
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conducting research. Logistic challenges
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inherent in performing trial procedures
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at the large number of
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donor hospitals and organ recovery
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facilities, lack of
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trial oversight, difficulties with
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obtaining authorization for donor
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research, and lack of
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dedicated funding mechanisms. Indeed,
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this trial was largely
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unfunded, relying on internal
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support within each participating
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OPO. These obstacles,
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among others, have resulted in
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a paucity of randomized controlled
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trials, which provide definitive data
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to inform donor care and
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to increase the yield and
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utilization of donor organs.
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After these hurdles are overcome,
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will the organ donation and
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transplantation community be able
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to meet the goal
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of increasing the availability
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of donor organs for
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life-saving transplantation? Amavantimab
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plus chemotherapy in
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NSCLC with EGFR
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exon 20 insertions
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by Kaikun Zhou from
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Shanghai Pulmonary Hospital, China.
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Amavantimab has been approved
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for the treatment of
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patients with advanced non-small
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cell lung cancer, NSCLC,
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with epidermal growth factor
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receptor, EGFR exon 20
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insertions, who have had
6:46
disease progression during or
6:49
after platinum-based chemotherapy. Phase
6:52
one data showed the
6:54
safety and anti-tumor activity
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of Amavantimab plus carboplatin
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pematrexet chemotherapy. Additional
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data on this combination therapy
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are needed. In this
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phase three trial, 308
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patients with advanced NSCLC
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with EGFR exon 20
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insertions, who had not
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received previous systemic therapy,
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were randomly assigned to
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receive intravenous Amavantimab plus
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chemotherapy or chemotherapy alone.
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The primary outcome of progression-free
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survival was significantly longer in
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the Amavantimab chemotherapy group as
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compared with the chemotherapy group,
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median 11.4 months and 6.7
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months respectively. At
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18 months, progression-free survival
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was reported in 31% of the
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patients in
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the Amavantimab chemotherapy group and in
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3% in the
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chemotherapy group. A complete
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or partial response at data cutoff
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was reported in 73% and 47% respectively. The
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predominant adverse events
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associated with amavantimab
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chemotherapy were reversible
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hematologic and EGFR-related
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toxic effects. 7%
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of patients discontinued amavantimab
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owing to adverse reactions.
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The use of amavantimab
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with chemotherapy resulted in
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superior efficacy as compared
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with chemotherapy alone as
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first-line treatment of patients
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with advanced NSCLC with
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EGFR exon 20 insertions.
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Inhaled amacasin to
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prevent ventilator-associated pneumonia.
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By Stefan Ermann from
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the St. Trops-Bitalier-Regional Universitaire
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du Tour, France.
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