Recruitment for the beta-carotene and retinol efficacy trial (CARET) to prevent lung cancer in smokers and asbestos-exposed workers.
Omenn GS, Goodman G, Grizzle J, Thornquist M, Rosenstock L, Barnhart S, Anderson G, Balmes J, Cone J, Cherniack M, et al.
West J Med. 1992 May;156(5):540-4. No abstract available. PMID: 1595284 [PubMed - indexed for MEDLINE]Related articlesFree article