KT contributed by designing the questionnaires, acquiring data, designing the study, methodological supervision and revising and drafting the manuscript.
KDM contributed by designing the experiments, by analysing and interpreting the results, by writing of the manuscript, and by arranging the grant support for this study.
RJP and ML have contributed by designing the datasets which form the foundation of the manuscript and by acquisition of data.
A mediator might contribute by designing and managing the process in a way that provides a maximum opportunity to create value, by assisting with communications in a way that facilitates positive results, and by suggesting substantive solutions to the problems that parties encounter during the course of their renegotiation.
RAR contributed by conceiving, designing, and programming the technique, acquiring, analyzing, and interpreting the data, and drafting the manuscript.
Nevertheless, some variations (whenever they exist) may be contributed by the study design and possibly also in the degree of strictness with which the ICHD-II criteria were applied in clinical the diagnosis.
LCGH contributed by developing the design of the study, performing bioinformatics analyses, and writing the paper.
JDC contributed by developing study design, interpreting data, and composing the manuscript.
