Source:
MMWR. Morbidity and mortality weekly report [MMWR Morb Mortal Wkly Rep] 2019 Oct 25; Vol. 68 (42), pp. 943-946. Date of Electronic Publication: 2019 Oct 25.Publisher: U.S. Centers for Disease Control Country of Publication: United States NLM ID: 7802429 Publication Model: Electronic Cited Medium: Internet