TY  - RPRT
TI  - Is PPD a useful screening agent?
AU  - A K Koopmans
AU  - D P Bruynzeel
PY  - 2003
DO  - 10.1034/j.1600-0536.2003.480207.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12694212/
ID  - 12694212
ER  -