By Leung K.T.   Tong M.K.H.   Siu Y.P.   Lam C.S.   Ng H.L.   Lee H.K.   in Scandinavian Journal of Infectious Diseases

ISSN:0036-5548|36|6-7|483-486

Informa Healthcare‎(2004)‎

Access to resources Favorite 6.884232

By Lam C S   in Canadian Journal of Physics

ISSN:1208-6045|84|6-7|621-623

NRC Research Press‎(2006)‎

Access to resources Favorite 5.645798