title: Sleep ontogeny in the chimpanzee: from two months to forty-one months.
mesh_terms: D000367:Age Factors; D000818:Animals; D001522:Behavior, Animal; D001921:Brain / Q000254:growth & development*; D004562:Electrocardiography; D004569:Electroencephalography; D004576:Electromyography; D004585:Electrooculography; D000882:Haplorhini; D009068:Movement; D002679:Pan troglodytes; D012119:Respiration; D012881:Skin Temperature; D012890:Sleep; D012894:Sleep Stages; D012895:Sleep, REM