Contribution of authorship
JM and BNak made an equal contribution to the overall preparation of the
final manuscript. JM, BNak and BNat were responsible for the statistical
analysis plan. MJN was responsible for the overall conception and
planning of the study. BNat, IS, MM and EW were primarily responsible
for data management and statistical analysis. All authors (JM, BNak,
BNat, IS, MM, AAN, STu, STi, MM, AK, BAg, FN, DZ, BAy, HK, SN, MS, AN,
EW and MN) were responsible for carrying out the study, contributing to
the final manuscript and accept responsibility for the published paper.