Histidine and keratinization.
D000818:Animals; D006639:Histidine / Q000378:metabolism*; D006651:Histocytochemistry; D006801:Humans; D007633:Keratins / Q000378:metabolism*; D051379:Mice; D011868:Radioisotopes; D051381:Rats; D012871:Skin Diseases / Q000503:physiopathology*; D012879:Skin Physiological Phenomena
D011868:Radioisotopes; D006639:Histidine; D007633:Keratins