A plea for further investigation of the sun-protective effect of vitamin A.
D000152:Acne Vulgaris / Q000188:drug therapy; D001315:Australia; D002119:Calcium Carbonate / Q000627:therapeutic use; D006801:Humans; D007057:Ichthyosis / Q000188:drug therapy; D008010:Lichen Planus / Q000188:drug therapy; D010858:Pigmentation / Q000502:physiology; D010916:Pityriasis Rubra Pilaris / Q000188:drug therapy; D012867:Skin / Q000187:drug effects; D013471:Sunburn / Q000517:prevention & control*; D013473:Sunscreening Agents; D014466:Ultraviolet Rays; D006113:United Kingdom; D014801:Vitamin A / Q000097:blood / Q000627:therapeutic use*
D013473:Sunscreening Agents; D014801:Vitamin A; D002119:Calcium Carbonate