title: Dietary beta-carotene, vitamin C, and risks of prostate cancer.
authors.forename: P N
authors.initials: PN
authors.lastname: Singh
mesh_terms: D001205:Ascorbic Acid / Q000009:adverse effects*; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D016016:Proportional Hazards Models; D011471:Prostatic Neoplasms / Q000453:epidemiology* / Q000209:etiology; D015203:Reproducibility of Results; D012307:Risk Factors; D013997:Time Factors; D019207:beta Carotene / Q000009:adverse effects*
chemical_list: D019207:beta Carotene; D001205:Ascorbic Acid