Authors' reply re: Reflex cytology for triage of high-risk human-papillomavirus-positive self-sampled material in cervical cancer screening: a prospective cohort study. - Loopik DL; Melchers WJ; Vedder JE; van den Brule AJ; Massuger LF; Bekkers RL; Siebers AG (BJOG : an international journal of obstetrics and gynaecology, 2020)