Contribution to authorship
JYL participated in design of the study, acquisition of data, statistical analysis, interpretation of data, writing of manuscript, revision of manuscript. SML participated in statistical analysis, interpretation of data, writing of manuscript, revision of manuscript. MJ participated in acquisition of data, statistical analysis, revision of manuscript. SO participated in statistical analysis, interpretation of data, revision of manuscript. SH participated in acquisition of data, statistical analysis, revision of manuscript. JKJ participated in design of study, acquisition of data, statistical analysis, interpretation of data, writing of manuscript, revision of manuscript.