title: Reply to Koleva-Kolarova et al.
authors.affiliation: Dept of Public Health, Erasmus MC, University Medical Center Rotterdam, The Netherlands. Electronic address: h.dekoning@erasmusmc.nl.
authors.forename: H J
authors.initials: HJ
authors.lastname: de Koning
authors.affiliation: Dept of Population Health Sciences and Carbone Cancer Center and the Dept of Industrial and Systems Engineering, University of Wisconsin, USA.
authors.forename: O
authors.initials: O
authors.lastname: Alagoz
authors.affiliation: Albert Einstein College of Medicine, Bronx, NY, USA.
authors.forename: C B
authors.initials: CB
authors.lastname: Schechter
authors.affiliation: Dept of Public Health, Erasmus MC, University Medical Center Rotterdam, The Netherlands.
authors.forename: N T
authors.initials: NT
authors.lastname: van Ravesteyn