GAS conceived of the study, participated in the design, coordinated the interpretation of the data and drafted the manuscript.
MRK and H-JR designed and coordinated the studies, aided in the interpretation of the data and drafted the manuscript.
KSN conceived and coordinated this study, participated in the interpretation of data and corrected the final version of this manuscript.
RB and RC conceived, designed and coordinated the study, participated in the interpretation of the results and in the writing of the manuscript.
ATV and WS conceived, designed and coordinated the study, participated in the interpretation of the results and in the writing of the manuscript.
ISS, HBF, ATV and AZ conceived, designed and coordinated the study, participated in the interpretation of the results and in the writing of the manuscript.
SK, MB, and LB participated in coordinating the study and in the interpretation of data and were involved in drafting the manuscript.
RS participated in the design of the study, coordinated the study procedure, participated in the interpretation of data, and drafted the manuscript.
HK participated in the design of the study, coordinated the study procedure, participated in the interpretation of data, and revised the manuscript critically.
CK and MS devised the design of the study, coordinated the study and participated in the interpretation of the data and critically revised the manuscript.
