TY - BOOK ID - 136332307 TI - Oral contraceptives. AU - Briggs, Michael H. AU - Briggs, Maxine PY - 1980 PB - Edinburgh Churchill Livingstone DB - UniCat KW - Contraceptives, Oral UR - https://www.unicat.be/uniCat?func=search&query=sysid:136332307 AB - ER -