TY - GEN AU - Vandekerckhove,F AU - Dhont,M AU - Thiery,M AU - Derom,R TI - Screening for multiple pregnancy. Determination of human chorionic gonadotropin (hCG), alpha-fetoprotein (alpha-FP) and human placental lactogen (hPL) in blood during the second trimester of pregnancy SN - 0001-5660 PY - 1985///0812 KW - Chorionic Gonadotropin KW - blood KW - Female KW - Humans KW - Placental Lactogen KW - Pregnancy KW - Pregnancy Tests KW - Pregnancy Trimester, Second KW - Pregnancy, Multiple KW - Retrospective Studies KW - Twins KW - alpha-Fetoproteins KW - analysis N1 - Publication Type: Journal Article UR - https://doi.org/10.1017/s0001566000007091 ER -