TY - EJOUR T1 - The relevance of zinc determination in amniotic fluid 1st Communication: Development of the technique and comparative determination of zinc and protein AU - Kynast, G. AU - Wagner, N. AU - Saling, E. AU - Herold, W. PY - 1978 LA - und PB - Kooperation de Gruyter JO - Journal of Perinatal Medicine - Official Journal of the WAPM DO - 10.1515/jpme.1978.6.5.231 ER -