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Distribution of fetal erythroblasts in maternal blood after chorionic villous sampling.
Al-Mufti R, Hambley H, Farzaneh F, Nicolaides KH.
BJOG 2003;110:33-8. -
Carbonic anhydrase isoenzymes CAI and CAII in semen, decidua, chorionic villi and various fetal tissues.
Ali Akbar S, Nicolaides KH, Brown PR.
Early Hum Dev 1998;10;51:205-11.