JGK designed the study, oversaw data collection, guided analyses, and drafted the manuscript.
PRT conceived of the study, oversaw laboratory and statistical analyses, revised the manuscript, and obtained funding.
MM obtained funding; designed the study; oversaw data collection, analysis, interpretation; and drafted the manuscript.
CE helped conceive the study, oversaw sequencing and participated in the critical review of the manuscript.
AJ conceived the study, oversaw and developed experimental procedures, conducted statistical analyses, and drafted the manuscript.
JWC conceived the idea for the study, designed the study, oversaw analyses and drafted the manuscript.
MPL conceived of the study, oversaw statistical analyses, and revised the manuscript.
MRG designed the study, oversaw data collection, performed the statistical analyses and drafted the manuscript.
She designed the study, oversaw data collection, and participated in data analysis and project write up.
MM conceived the study, oversaw its implementation and wrote the manuscript.
LWH managed the study, oversaw final approval of the manuscript and contributed funding.
