Advani, N., Department of Child Health, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jl Merapi, 33 Giriloka 1, Serpong, 15310, Indonesia; Sastroasmoro, S., Department of Child Health, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jl Merapi, 33 Giriloka 1, Serpong, 15310, Indonesia; Ontoseno, T., Department of Child Health Faculty of Medicine, Universitas Airlangga-Sutomo Hospital, Surabaya, Indonesia; Uiterwaal, C., Julius Center for Health Science and Primary Care, University of Medical Center Utrecht, Utrecht, Netherlands