PT - JOURNAL ARTICLE AU - Dastgiri, Saeed TI - Frequency, incidence, and prevalence AID - 10.15537/smj.2016.3.14677 DP - 2016 Mar 01 TA - Saudi Medical Journal PG - 329--329 VI - 37 IP - 3 4099 - http://smj.org.sa/content/37/3/329.short 4100 - http://smj.org.sa/content/37/3/329.full SO - Saudi Med J2016 Mar 01; 37