Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "Pernoll, Martin L. and Benson, Ralph Criswell",Current obstetric & gynecologic diagnosis & treatment 1987,6th ed,Appleton & Lange,1987,A Lange medical book,,083851412X,,https://cir.nii.ac.jp/crid/1130000797696445440