Severe acute respiratory syndrome: patients were epidemiologically linked

During the editing process the affiliations of two coauthors listed at the end of this letter by Moira Chan-Yeung and colleagues were wrongly inserted (21 June, p 1393). Their job titles were correct, but the hospitals they work at were wrong. Thomas S T Lai is a consultant physician at Princess Margaret Hospital, Hong Kong, and Wilson K S Yee is a consultant physician at Kwong Wah Hospital, Hong Kong.