PT - JOURNAL ARTICLE ED - , TI - YELLOW FEVER VACCINATION ESSENTIAL FOR ANGOLA, WHO REMINDS TRAVELLERS DP - 2016 May 01 TA - Saudi Medical Journal PG - 595--595 VI - 37 IP - 5 4099 - http://smj.org.sa/content/37/5/595.short 4100 - http://smj.org.sa/content/37/5/595.full SO - Saudi Med J2016 May 01; 37