TY  - RPRT
TI  - Dried or liquid tuberculin for screening?
AU  - S Szumski
PY  - 1981
DO  - 10.1016/s0140-6736(81)92536-8
UR  - https://pubmed.ncbi.nlm.nih.gov/6113328/
ID  - 6113328
ER  -