PT - JOURNAL ARTICLE AU - Fayez Kheir AU - Abdul Hamid Alraiyes AU - Daniel Salerno AU - M. Chadi Alraies TI - Lung air-fluid level in a smoker AID - 10.3949/ccjm.80a.12107 DP - 2013 Aug 01 TA - Cleveland Clinic Journal of Medicine PG - 500--501 VI - 80 IP - 8 4099 - http://www.ccjm.org/content/80/8/500.short 4100 - http://www.ccjm.org/content/80/8/500.full SO - Cleve Clin J Med2013 Aug 01; 80