Upper gastrointestinal endoscopy in children.

by Quak, S.H., Lam, Shih Kwong, Low, P.S.
Published 2013

Helicobacter pylori infection in children with recurrent abdominal pain

by Quak, S.H., Wee, A., Quah, T.C., Quek, S.C., Lam, Shih Kwong
Published 2016