PT - JOURNAL ARTICLE AU - Ahmad, Muzaffar AU - Golish, Joseph A. TI - Management of difficult asthma DP - 1980 Mar 20 TA - Cleveland Clinic Journal of Medicine PG - 33--38 VI - 47 IP - 1 4099 - http://www.ccjm.org/content/47/1/33.short 4100 - http://www.ccjm.org/content/47/1/33.full SO - Cleve Clin J Med1980 Mar 20; 47