TY  - RPRT
TI  - Antigenic differences in two tuberculin protein fractions.
AU  - F B SEIBERT
AU  - C CRUMB
AU  - E H DUFOUR
DO  - 10.1093/infdis/89.3.252
UR  - https://pubmed.ncbi.nlm.nih.gov/14888949/
ID  - 14888949
ER  -