Monitoring perinatal mortality by birth weight specific mortality rates
R. Erkkola, P. Kero, A. Seppälä, M. Grönroos, L. RauramoVolume:
20
Year:
1982
Language:
english
DOI:
10.1016/0020-7292(82)90078-9
File:
PDF, 485 KB
english, 1982