J. Bashir, Z. Ahmed, M. Ghafoor, M. Hussain, S. Zaman, and M. W. Babar, “Frequency of Respiratory Distress Syndrome in Preterm Infants Delivered at Pak Emirates Military Hospital, Rawalpindi”, Pak Armed Forces Med J, vol. 72, no. 4, pp. 1314–17, Sep. 2022.