TY  - RPRT
TI  - Misleading sputum cartons.
AU  - C G THOMAS
AU  - F J GIBBS
PY  - 1960
DO  - 10.1136/jcp.13.3.261
UR  - https://pubmed.ncbi.nlm.nih.gov/13855052/
ID  - 13855052
ER  -