TY  - RPRT
TI  - Minimal active tuberculosis: an increasingly difficult diagnosis.
AU  - J A GRAY
AU  - G E SPENCER
PY  - 1959
DO  - 10.1378/chest.35.3.266
UR  - https://pubmed.ncbi.nlm.nih.gov/13630206/
ID  - 13630206
ER  -