title: Primum non nocere.
authors.forename: Alan D L
authors.initials: AD
authors.lastname: Sihoe
authors.forename: Randolph H L
authors.initials: RH
authors.lastname: Wong
authors.forename: Anthony P C
authors.initials: AP
authors.lastname: Yim
mesh_terms: D004196:Disease Outbreaks; D004992:Ethics, Medical; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D017758:Infectious Disease Transmission, Patient-to-Professional / Q000517:prevention & control; D011030:Pneumothorax / Q000209:etiology / Q000601:surgery*; D012307:Risk Factors; D045169:Severe Acute Respiratory Syndrome / Q000150:complications / Q000453:epidemiology / Q000628:therapy* / Q000635:transmission