title: Obesity surgery and hypovitaminosis A.
authors: W Barry
authors: WB
authors: Lee
authors: Ivan R
authors: IR
authors: Schwab
mesh_terms: D050110:Bariatric Surgery / Q000009:adverse effects*; D006801:Humans; D009765:Obesity / Q000601:surgery*; D014802:Vitamin A Deficiency / Q000209:etiology*; D014985:Xerophthalmia / Q000209:etiology*