TY - BOOK ID - 128683759 TI - Recommended procedures for the study of use-effectiveness of contraceptive methods AU - Tietze, Christopher AU - Tietze, Sarah Lewit PY - 1962 PB - New York : National Committee on Maternal Health, DB - UniCat KW - Contraception. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128683759 AB - ER -