Al Beladi, F. I., S. M. Attar, A. M. Samman, A. A. Filfilan, H. A. Ismail, and M. A. Al-Sheikah. “Intrapulmonary Hemorrhage in Small Vessel Vasculitis: A Case Series from Saudi Arabia”. Journal of King Abdulaziz University - Medical Sciences, Vol. 20, no. 1, Mar. 2013, pp. 97-110, doi:10.4197/Med.20-1.7.