TY  - RPRT
TI  - Sputum testing for TB: getting good specimens.
AU  - C Petrec
PY  - 1996
DO  - 10.1097/00000446-199602000-00009
UR  - https://pubmed.ncbi.nlm.nih.gov/8629688/
ID  - 8629688
ER  -