Saima Iqbal, Sadia Hanif, Zaib Un Nisa, Ambreen Shabbir, Khizera Anwar, Nighat Afridi, “Comparison of the Effectiveness of Oral Progesterone and Micronized Progesterone Pessary in Reducing the Spontaneous Preterm Birth Incidences”, Pakistan Journal of Medical & Health Sciences, vol. 17, no. 02, p. 395, Mar. 2023.