https://www.selleckchem.com/products/cnqx.html
 Preterm birth (PTB, birth before 37 gestational weeks) is the leading cause of neonatal death and a major challenge for obstetric and neonatal care. About two-thirds of PTBs are spontaneous PTB (sPT, of which approximately 30% start with preterm premature rupture of membranes (PPROM). The aim of the study was to investigate risk factors and maternal and perinatal outcomes in sPTB with and without PPROM.  This is a national population-based cohort study including all singleton pregnancies in nulliparous women with spontaneous onset of la