Contributors to authorship:
MS: Data collection, protocol and project development, manuscript writing and editing
JT: Data collection, protocol and project development, manuscript writing and editing
AHF: Data collection, project development, manuscript writing and editing
GP: Protocol and project development, manuscript writing and editing
MED: Protocol and project development, manuscript writing and editing
JR: Protocol and project development, manuscript editing
NM: Data analysis, manuscript writing and editing
EC: Protocol and project development, manuscript writing and editing
MB: Protocol and project development, manuscript writing and editing