High parity is associated with increased risk of cervical cancer: Systematic review and meta-analysis of case–control studies oleh Yohannes Tekalegn, Biniyam Sahiledengle, Demelash Woldeyohannes, Daniel Atlaw, Sisay Degno, Fikreab Desta, Kebebe Bekele, Tesfaye Aseffa, Habtamu Gezahegn, Chala Kene