TY - GEN AU - Lau,H L TI - Assessment of pregnancy testing for population programmes SN - 0019-0357 PY - 1977///0425 KW - Family Planning Services KW - Female KW - Humans KW - Pregnancy KW - Pregnancy Tests KW - standards KW - Pregnancy Tests, Immunologic KW - Specimen Handling N1 - Publication Type: Journal Article ER -