Shawky S, Ghabrah T M, Abalkhail B A, Soliman N K
Department of Community Medicine and Primary Health Care, Faculty of Medicine and Allied Health Sciences, King AbdulAziz University, Jeddah, Kingdom of Saudi Arabia.
Saudi Med J. 1999 Nov;20(11):877-81.
Full text is available as a scanned copy of the original print version.
全文可作为原始印刷版的扫描副本获取。