Chiu, Philip W. Y.
Chan, Francis K. L.
Article History
First Online: 17 June 2014
Competing interests
: P.W.Y.C. has received speaker's honorarium from Olympus and Pentax in the past year. F.K.L.C. has received speaker's honorarium from Pfizer, AstraZeneca, and Eisai in the past 3 years.