title: Serum vitamin A and carotene levels in Thai cancer patients progress report.
mesh_terms: D002338:Carotenoids / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000097:blood*; D012306:Risk; D013785:Thailand; D014801:Vitamin A / Q000097:blood*; D019207:beta Carotene
chemical_list: D019207:beta Carotene; D014801:Vitamin A; D002338:Carotenoids