Determination of maternal risk factors of preterm delivery: adjusted for sparse data bias; results from a population-based case-control study in Iran

por Valipour, Mehrdad, Ayubi, Erfan, Shiravand, Narges, Moradi, Yousef, Abbaszadeh, Abolfazl, Amrai, Firooz, Mokhtari, Shahin, Bahmanpour, Kaveh, Mansori, Kamyar
Publicado 2020