Karyanti M.R., From the Department of Child Health, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands; Uiterwaal C.S.P.M., Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands; Hadinegoro S.R., From the Department of Child Health, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia; Widyahening I.S., Department of Community Medicine, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia; Saldi S.R.F., Clinical Epidemiology and Evidence-Based Medicine Unit, Cipto Mangunkusumo Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia; Heesterbeek J.A.P.H., Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands; Hoes A.W., Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands; Bruijning-Verhagen P., Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands