Chu Derek K, Wood Robert A, French Shannon, Fiocchi Alessandro, Waserman Susan, Schünemann Holger J
Department of Medicine, St Joseph's Healthcare Hamilton, Hamilton, Ontario, ON, Canada; McMaster University, Hamilton, ON L8S 4K1, Canada.
Division of Allergy & Immunology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Lancet. 2020 Feb 8;395(10222):415-416. doi: 10.1016/S0140-6736(19)32567-X.