Developmental abnormalities of the intrinsic nervous system.
D000818:Animals; D003106:Colon / Q000294:innervation*; D046508:Culture Techniques; D005724:Ganglia / Q000002:abnormalities* / Q000254:growth & development; D006801:Humans; D051379:Mice; D009474:Neurons / Q000166:cytology; D010641:Phenotype