Made available in DSpace on 2022-04-29T07:26:32Z (GMT). No. of bitstreams: 0 Previous issue date: 1984-01-01; We have measured zinc in the serum of pregnant and non-pregnant women classified in two socio economic levels, high socio-economic level pregnant and non-pregnant women attending a private office and low socio-economic level pregnant and nonpregnant women either attending our hospital, belonging to a so...