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Correspondence
Interim Buprenorphine vs. Waiting List for Opioid Dependence
To the Editor: Opioid-use disorder has reached epidemic proportions, with high attendant costs in terms of increases in overdoses and infectious diseases and in economic costs. Despite the demonstrated efficacy of maintaining abstinence by treating patients with opioid agonists, patients can remain…
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Correspondence
A Police-Led Addiction Treatment Referral Program in Massachusetts
To the Editor: During the period from 2009 through 2013, only 21% of people with an opioid-use disorder in the United States received any type of treatment. In response to increasing rates of overdose deaths in the community, the Gloucester Police Department developed the Angel Program, a…
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Correspondence
Primary Sclerosing Cholangitis
To the Editor: The incidence of cholangiocarcinoma in the general population is low; nevertheless, patients with primary sclerosing cholangitis face a lifetime risk of cholangiocarcinoma that is as high as 10%. Lazaridis and LaRusso (Sept. 22 issue) suggest the use of endoscopic retrograde…
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Correspondence
Daratumumab and Blood-Compatibility Testing
To the Editor: Myeloma treatment with daratumumab shows an impressive efficacy and safety profile, as recently reported by Dimopoulos et al. in the POLLUX trial (Oct. 6 issue) and by others. However, we would appreciate a deeper discussion about the panreactivity on blood-compatibility testing that…
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Correspondence
Andexanet Alfa for Factor Xa Inhibitor Reversal
To the Editor: In their interim report on the Andexanet Alfa, a Novel Antidote to the Anticoagulation Effects of FXA Inhibitors (ANNEXA-4) study, Connolly et al. (Sept. 22 issue) report on the potential utility of andexanet alfa in reversing three factor Xa inhibitors. We understand the difficulty…
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Correspondence
Multiple Variants of Klebsiella pneumoniae Producing Carbapenemase in One Patient
To the Editor: The investigation of outbreaks of Enterobacteriaceae that produce Klebsiella pneumoniae carbapenemases (KPCs) is hampered by the mobility of the blaKPC gene, which is spread by the Tn4401 transposon that carries the gene or by the plasmids that harbor the transposon, resulting in…
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Correspondence
Dietary Sodium and Cardiovascular Disease Risk
To the Editor: Cogswell et al. (Aug. 11 issue) argue that the reported association between low sodium intake and increased cardiovascular risk does not fulfill the criteria for causality, and they therefore conclude that low sodium intake should be recommended. We wish to call attention to several…
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Correspondence
Betrixaban in Acutely Ill Medical Patients
To the Editor: In the Acute Medically Ill VTE (Venous Thromboembolism) Prevention with Extended Duration Betrixaban (APEX) trial, Cohen et al. (Aug. 11 issue) analyzed whether the risk of venous thromboembolism was lower with extended-duration betrixaban than with the standard regimen of enoxaparin…
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Correspondence
Craniectomy for Traumatic Intracranial Hypertension
To the Editor: In the Randomised Evaluation of Surgery with Craniectomy for Uncontrollable Elevation of Intracranial Pressure (RESCUEicp) trial reported by Hutchinson and others (Sept. 22 issue), mortality among patients with severe traumatic brain injury (TBI) and refractory intracranial…
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Correction
Nitrates in Heart Failure with Preserved Ejection Fraction
Nitrates in Heart Failure with Preserved Ejection Fraction Correspondence, N Engl J Med 2016;374:1587-1589. In the letter from Mueller et al. (page 1588), one of the authors' surnames was misspelled: "Kohzuharov" should have been Kozhuharov. The same misspelling occurred in the authors' reply…
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Correction
Smoking and Mortality — Beyond Established Causes
Smoking and Mortality — Beyond Established Causes Correspondence, N Engl J Med 2015;372:2168-2170. In the letter from Nabi et al. (page 2169), one of the authors' surnames was misspelled: "Estaqiuo" should have been Estaquio. The letter is correct at NEJM.org.
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Correspondence
Efficacy of Convalescent Plasma in Relation to Dose of Ebola Virus Antibodies
To the Editor: We previously reported the results of a nonrandomized, controlled trial that compared survival among patients with Ebola virus (EBOV) disease who were treated with convalescent plasma with survival among historical controls. Although no safety concerns were identified, efficacy was…
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Correspondence
CPAP in Obstructive Sleep Apnea
To the Editor: The results of the Sleep Apnea Cardiovascular Endpoints (SAVE) study reported by McEvoy et al. (Sept. 8 issue) provide the opportunity to reflect on the story of the glass that is half full. The study shows that if a person is not adherent to continuous positive airway pressure…
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Correspondence
Variants in ANGPTL4 and the Risk of Coronary Artery Disease
To the Editor: Genomic studies of cardiovascular disease that are based on samples obtained from patients have identified variants associated with the risk of disease that do not always predict the onset of disease shown in prospective studies. Dewey et al. (March 24 issue) report lower levels of…
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Correspondence
Intensive Blood-Pressure Lowering in Cerebral Hemorrhage
To the Editor: Qureshi et al. (Sept. 15 issue) report the results of the Antihypertensive Treatment of Acute Cerebral Hemorrhage II (ATACH-2) trial of blood-pressure lowering in patients with intracerebral hemorrhage. Though participants were assigned to a systolic blood-pressure target of 110 to…
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Correspondence
Biologic and Clinical Perspectives on Thyroid Cancer
To the Editor: In their review article on thyroid cancer, Fagin and Wells (Sept. 15 issue) state that 7% of unselected medullary thyroid carcinomas are attributable to germline RET mutations, but they do not provide a similar numerical estimate of genes that contribute to the development of…
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Correspondence

Prolonged Zika Virus Viremia during Pregnancy
To the Editor: We describe a case of Zika virus (ZIKV) infection during pregnancy in a Colombian woman. She was infected in December 2015 while she was visiting her home country. At 9 weeks’ gestation, she had a self-limited maculopapular, nonconfluent rash for 3 days that affected her trunk, arms,…
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Correspondence
TP53 and Histone H3.3 Mutations in Triple-Negative Lower-Grade Gliomas
To the Editor: The genomic landscape of lower-grade gliomas has recently been investigated in "multi-omic" analyses that have revealed molecular subgroups with prognostic relevance. In particular, robust biomarkers, including 1p/19q codeletion (deletion of chromosome arms 1p and 19q), IDH mutation,…
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Correspondence
70-Gene Signature in Early-Stage Breast Cancer
To the Editor: The results of the study by Cardoso et al. (Aug. 25 issue) suggest that chemotherapy can be safely withheld from patients who are clinically at high risk for recurrence but have a low-risk 70-gene signature (MammaPrint). However, the subgroup analysis does not show whether this…
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Correspondence
The Nature of the P Value
To the Editor: Pocock and Stone (Sept. 8 issue) provide an excellent primer on evaluations of clinical trials and their applications to practice. However, early on in their article they make a common but erroneous statement regarding the nature of the P value: "A P value of 0.05 carries a 5% risk…
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