title: Letter: Sickle cell screening programs.
mesh_terms: D000367:Age Factors; D000755:Anemia, Sickle Cell / Q000151:congenital / Q000175:diagnosis*; D001800:Blood Specimen Collection; D004586:Electrophoresis; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis*; D008403:Mass Screening; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000175:diagnosis; D014470:Umbilical Cord