The effect of Nigella Sativa emulgel on episiotomy wound healing and pain intensity in primiparous women: A triple-blind randomized controlled trial - Mahsa Maghalian; Afsaneh Alizadeh; Fatemeh Raphi; Ziba Islambulchilar; Laleh Khodaie; Mahsan Nabighadim; Simin Taghavi; Mojgan Mirghafourvand (PLoS ONE, 2025)