Table 2.
PPI data source distribution.
| Data source | # of records | percentage |
|---|---|---|
| HPRD | 35645 | 52.6% |
| DIP | 32976 | 48.7% |
| ALL | 67769 | |
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.