%0 Journal Article %T Effects of Oral Zinc and Vitamin A in Acne %A Michaƫlsson, Gerd %A Juhlin, Lennart %A Vahlquist, Anders %J Archives of Dermatology %V 113 %N 1 %P 31-36 %@ 0003-987X %D 1977-01-01 %I American Medical Association %~ DeepDyve