information about Purified protein derivative field

Purified protein derivative

https://www.wikidata.org/wiki/Q29505
Field Hierarchy
Parent
Medicine
49.4M papers
Pathology
9.1M papers
Tuberculosis
380k papers
Tuberculin
19.6k papers
Current
Purified protein derivative
735 papers
Child
PPD positive
0 papers
Positive ppd
0 papers
Ppd negative
0 papers
Negative PPD
0 papers
Trends