ST participated in the design of the study, organised the implementation and supervision, supervised data collection and entry, and compiled the initial draft paper.
VW conducted the searches, analysed the data and wrote the article, JK analysed some of the data, supervised data analysis, and reviewed the article, AE supervised and reviewed the article, and JH supervised and reviewed the article.
JT conceptualised and designed the study, established the Clinical Advisory Group, supervised data analyses and the interpretation of findings, and reviewed several manuscript drafts.
RC participated in the conception and design and coordination of the study, supervised data analysis, interpreted the findings and drafted the manuscript and revised the manuscript.
PS initiated the analysis of the data, supervised data collection and statistic and drafted the manuscript.
LVH conceived and designed the research, developed the tools, supervised data collection, analysed data and drafted the manuscript.
KM supervised, supported and designed the study, supervised data processing, and drafted the manuscript.
SPLL conceived and coordinated the study, supervised data analysis, translated the manuscript and prepared the final draft.
RT supervised and participated in designing the study, supervised data analysis, and critically revised the manuscript.
GT was responsible for substantial contribution to the conception and design of the study, supervised data analysis and interpretation, critically revised the manuscript and gave final approval.
