Source:
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences [Beijing Da Xue Xue Bao Yi Xue Ban] 2010 Apr 18; Vol. 42 (2), pp. 243-5.Publisher: Beijing da xue Country of Publication: China NLM ID: 101125284 Publication Model: Print Cited Medium: Print ISSN: 1671-167X (Print)