TY - BOOK ID - 135124603 TI - Oral contraceptives AU - Briggs, Michael H. AU - Briggs, Maxine PY - 1981 SN - 088831096X PB - Montreal Eden press DB - UniCat KW - Contraceptives, Oral UR - https://www.unicat.be/uniCat?func=search&query=sysid:135124603 AB - ER -