title: Letter: Etiology of crib death.
mesh_terms: D000367:Age Factors; D001049:Apnea / Q000209:etiology; D001237:Asphyxia / Q000209:etiology; D003645:Death, Sudden; D005260:Female; D005319:Fetal Hemoglobin; D006455:Hemoglobins, Abnormal; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009154:Mutation; D012119:Respiration; D012890:Sleep; D013577:Syndrome
chemical_list: D006455:Hemoglobins, Abnormal; D005319:Fetal Hemoglobin