Fig 1. A flow diagram to show the development of checklist items.
*Potential items from relevant information beyond the predefined data extraction form [19]. †New item (T1) proposed at checklist review meeting.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.