TY - GEN AU - Reidy,J A AU - Chen,A T TI - Reducing use of fetal-calf serum in culturing amniotic-fluid cells SN - 0028-4793 PY - 1980///1027 KW - Amniotic Fluid KW - cytology KW - Animals KW - Cattle KW - Cells, Cultured KW - Culture Media KW - Female KW - Fetal Blood KW - Gestational Age KW - Humans KW - Pregnancy KW - Prenatal Diagnosis KW - methods N1 - Publication Type: Letter UR - https://doi.org/10.1056/NEJM198009183031222 ER -