TY  - RPRT
TI  - BCG: past, present, and future.
AU  - A J WALLGREN
PY  - 1957
DO  - 10.1164/artpd.1957.76.5.715
UR  - https://pubmed.ncbi.nlm.nih.gov/13478829/
ID  - 13478829
ER  -