title: The function of vitamin A: current concepts.
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D002462:Cell Membrane / Q000187:drug effects / Q000502:physiology; D004261:DNA Replication / Q000187:drug effects; D005260:Female; D006801:Humans; D008297:Male; D009747:Nutritional Physiological Phenomena; D012098:Reproduction / Q000187:drug effects; D012172:Retinaldehyde / Q000494:pharmacology; D014785:Vision, Ocular / Q000187:drug effects; D014801:Vitamin A / Q000378:metabolism / Q000494:pharmacology*
chemical_list: D014801:Vitamin A; D012172:Retinaldehyde