title: A review of early language development.
mesh_terms: D000367:Age Factors; D002490:Central Nervous System / Q000502:physiology; D002648:Child; D002674:Child, Institutionalized; D002675:Child, Preschool; D003071:Cognition; D004454:Echolalia; D004532:Ego; D005246:Feedback; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007699:Kinesthesis; D007804:Language Development; D009034:Mother-Child Relations; D012054:Reinforcement, Psychology; D012119:Respiration; D012649:Self Concept; D012737:Sex Factors; D012959:Socioeconomic Factors; D013060:Speech; D014110:Touch; D014831:Voice