title: Absence of abnormal prothrombin-crossed immunoelectrophoresis in fetuses during the second trimester of pregnancy.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007123:Immunoelectrophoresis, Two-Dimensional; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000097:blood*; D011262:Pregnancy Trimester, Second; D011516:Prothrombin / Q000032:analysis*; D014813:Vitamin K Deficiency / Q000097:blood*
chemical_list: D011516:Prothrombin