PT - JOURNAL ARTICLE AU - AlBarrak, Ali TI - Concepts and methods in infectious diseases surveillance DP - 2016 Mar 01 TA - Saudi Medical Journal PG - 330--330 VI - 37 IP - 3 4099 - http://smj.org.sa/content/37/3/330.short 4100 - http://smj.org.sa/content/37/3/330.full SO - Saudi Med J2016 Mar 01; 37