TY  - RPRT
TI  - [Practical application of tuberculin tests].
AU  - A Zimmermann
AU  - U Ackermann-Liebrich
PY  - 1981
DO  - 10.1007/bf02078337
UR  - https://pubmed.ncbi.nlm.nih.gov/7314928/
ID  - 7314928
ER  -