Dumyati, M. S., Balubaid, S. A. B., Sindi, B. Z., Althobaiti, A., Azizurrehman, H. A. (2018). 'Knowledge, Attitude and Practices About Pneumococcal Infection among Algerian Hajj Pilgrims', The Egyptian Journal of Hospital Medicine, 70(5), pp. 806-817. doi: 10.12816/0043987