title: [First-trimester diagnosis of beta-thalassemia].
mesh_terms: D004262:DNA Restriction Enzymes; D005260:Female; D005819:Genetic Markers; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D011110:Polymorphism, Genetic; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis / Q000379:methods*; D013789:Thalassemia / Q000175:diagnosis* / Q000235:genetics
chemical_list: D005819:Genetic Markers; D004262:DNA Restriction Enzymes