Author contribution
RECRUITMENT
YK conceived the study, designed the study, analysed the data, including quality control, and drafted the manuscript. OM collected data, undertook recruitment of participants, and managed the data, including quality control. HH conceived the study, supervised the conduct of the study, provided statistical advice on study design, and chaired the data oversight committee. All authors contributed substantially to revising the manuscript. YK takes responsibility for the paper as a whole.