https://www.selleckchem.com/pr....oducts/crenolanib-cp
There is variation in the reported incidence rates of levator avulsion (LA) and paucity of research into its risk factors. To explore the incidence rate of LA by mode of birth, imaging modality, timing of diagnosis and laterality of avulsion. We searched MEDLINE, EMBASE, CINAHL, AMED and MIDIRS with no language restriction from inception to April 2019. A study was included if LA was assessed by an imaging modality after the first vaginal birth or caesarean section. Case series and reports were not included. RevMan v5.3 was