TY  - RPRT
TI  - "PD Plus": is it a new concept?
AU  - Z J Twardowski
AU  - R Khanna
AU  - K D Nolph
PY  - 1996
DO  - 10.1016/s0272-6386(96)90149-3
UR  - https://pubmed.ncbi.nlm.nih.gov/8712215/
ID  - 8712215
ER  -