TY - EJOUR T1 - Constancy of serum angiotensin-converting enzyme activity in normal and complicated pregnancy AU - Gast, Michael J. AU - Rigg, Lee A. AU - Amyx, Cheryl L. AU - Kessler, Gerald PY - 1987 LA - und PB - Kooperation de Gruyter JO - Journal of Perinatal Medicine - Official Journal of the WAPM DO - 10.1515/jpme.1987.15.3.263 ER -