PT - JOURNAL ARTICLE AU - Mark L Levy AU - Paul J Nicholson TI - Occupational asthma case finding: a role for primary care DP - 2004 Oct 01 TA - British Journal of General Practice PG - 731--733 VI - 54 IP - 507 4099 - http://bjgp.org/content/54/507/731.short 4100 - http://bjgp.org/content/54/507/731.full SO - Br J Gen Pract2004 Oct 01; 54