PT - JOURNAL ARTICLE AU - Mohammed Albarrak TI - Respiratory Medicine DP - 2015 Oct 01 TA - Saudi Medical Journal PG - 1253--1253 VI - 36 IP - 10 4099 - http://smj.org.sa/content/36/10/1253.short 4100 - http://smj.org.sa/content/36/10/1253.full SO - Saudi Med J2015 Oct 01; 36