Authors' roles & responsibilities
IVT	Substantial contributions to the acquisition and analysis of data for the work; drafting the work; final approval of the version to be published
OAT	Substantial contributions to the acquisition of data for the work; drafting the work; final approval of the version to be published
IDS	Substantial contributions to the acquisition of data for the work; final approval of the version to be published
OLB	Revising the work critically for important intellectual content; agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved; final approval of the version to be published