TY  - BOOK
AU  - Ballweg, Ruth
TI  - Physician assistant : a guide to clinical practice 
SN  - 978 1 455 70657 0
U1  - 610 7372069 PHY 
PY  - 0000/// Elsevier/Saunders
CY  - Philadelphia
PB  -  PA 
KW  - CLINICAL COMPETENCE
ER  -