I. Yu, and S. Tse. Hong Kong medical journal = Xianggang yi xue za zhi / Hong Kong Academy of Medicine, 17 (5):
405-6(October 2011)6545<m:linebreak></m:linebreak>JID: 9512509; ppublish;<m:linebreak></m:linebreak>Critical appraisal.
K. Ng, and W. Peh. Singapore medical journal, 49 (11):
856-8; quiz 859(November 2008)5238<m:linebreak></m:linebreak>JID: 0404516; ppublish;<m:linebreak></m:linebreak>Publicació.