【序号】: 1 【作者】:Klasson SC, Klein LN, Dimari SJ, Haralson MA.; 【题名】:The effects of tissue pretreatment and pepsin levels on the isolation of collagens from human placenta. 【期刊】:Coll Relat Res. . 【年、卷、期、起止页码】:1986 Dec;6(5):397-408.. 【全文链接】:http://www.ncbi.nlm.nih.gov/pubmed/3102159