RT Journal Article SR Electronic T1 Burden of influenza-related severe acute respiratory infections during Hajj season 1438 (2017). Lessons and future directions JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 524 OP 525 DO 10.15537/smj.2018.5.21801 VO 39 IS 5 A1 Assiri, Abdullah M. A1 Asiri, Sari I. A1 Banassir, Talib A1 Baljoon, Mustafa J. A1 Jokhdar, Hani YR 2018 UL http://smj.org.sa/content/39/5/524.abstract AB