The effect of oral vitamin A on the number of keratin cells of human epidermis.
D004817:Epidermis; D006801:Humans; D007633:Keratins / Q000737:chemistry*; D012879:Skin Physiological Phenomena; D014801:Vitamin A / Q000494:pharmacology*
D014801:Vitamin A; D007633:Keratins
KERATIN/chemistry; SKIN/physiology; VITAMIN A/pharmacology