Human Reproduction Vol. 22, no. 5, pp. 1310-1319, 2007 The efficacy of fertility awareness based (FAB) methods of family planning is critically reviewed. Read more...
Journal of the American Medical Association The primary hypothesis of this study was that contraceptive methods that prevent exposure to sperm and seminal fluid (condoms, diaphragms, spermicides, withdrawal) Read more...
Journal of Reproductive Immunology Conventional belief holds that an immune response to ejaculate antigens should interfere with fertilisation and establishment of pregnancy. Read more...