title: [Clinical study on retarded development of speech].
mesh_terms: D001037:Aphasia; D001724:Birth Weight; D002648:Child; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000150:complications; D036861:Delivery, Obstetric; D002658:Developmental Disabilities; D005260:Female; D005315:Fetal Diseases; D005500:Follow-Up Studies; D006311:Hearing Disorders / Q000150:complications; D006801:Humans; D008607:Intellectual Disability / Q000150:complications; D008297:Male; D009069:Movement Disorders / Q000150:complications; D011225:Pre-Eclampsia; D011247:Pregnancy; D011248:Pregnancy Complications; D011379:Prognosis; D012737:Sex Factors; D013064:Speech Disorders / Q000145:classification / Q000150:complications / Q000235:genetics