Biotin deficiency.
D000818:Animals; D001710:Biotin / Q000172:deficiency*; D003677:Deficiency Diseases / Q000188:drug therapy / Q000378:metabolism; D006801:Humans; D007223:Infant; D008661:Metabolism, Inborn Errors / Q000378:metabolism; D051381:Rats
D001710:Biotin