This paper takes the sediments of Dianchi Lake as the research object.The results show that the total phosphorus content in the sediments of Dianchi Lake is rel
920226 The first reported patient with AIDSin Chinese continent.WANG Ningfang (王凝芳),et al.302nd Hosp,PLA.Natl Med J Chin 1991;71(12):671-673.In this paper is
950257 Report of a case of glucagonoma misdiag-nosed as“eczema”and“hepatic angioma”for three yearsand review of literature.DAI Weixin(戴为信),et al.PUMC Hos