title: Selective embryonic survival of conceptuses with sickle-cell and beta-thalassaemia traits?
authors.forename: E B
authors.initials: EB
authors.lastname: Hook
mesh_terms: D000022:Abortion, Spontaneous; D000483:Alleles; D000755:Anemia, Sickle Cell / Q000235:genetics*; D005260:Female; D005313:Fetal Death; D006579:Heterozygote; D006801:Humans; D011247:Pregnancy; D017086:beta-Thalassemia / Q000235:genetics*