Method of preparing a cervical cap
作者： James P. Koch
DOI:
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摘要:
lens.org 参考文章(4)
Marvin P. Loeb, Cervical cap with foam lining ,(1980)
Uwe E. Freese, Robert A. Goepp, Custom valved cervical cap. ,(1980)
Richard G. Buckles, Barrier contraceptive torus ,(1979)
Robert Allan Erb, Method of forming a removable cervical cap ,(1974)