A. Santosh, G. Zunjarwad, I. Hamdi, J. A. Al-Nabhani, B. E. Sherkawy, and I. H. Al-Busaidi, “Perinatal Mortality Rate as a Quality Indicator of Healthcare in Al-Dakhiliyah Region, Oman”, Sultan Qaboos Univ Med J, vol. 13, no. 4, pp. 545–550, Nov. 2013.