RT Journal Article SR Electronic T1 Mass gatherings and mass gatherings health JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 729 OP 730 DO 10.15537/smj.2016.7.15419 VO 37 IS 7 A1 Saber Yezli A1 Badriah M. Alotaibi YR 2016 UL http://smj.org.sa/content/37/7/729.abstract AB