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.
Each data source had a slightly different period of data collection. The figure shows the data‐collection timeline of each data source. DIS, DRG Information System; FBSE, full‐body skin examination; GP, general practitioner; IPCI, Integrated Primary Care Information; PALGA, the Dutch Pathology Registry.
