... ZawadaDivision of Clinical Pharmacology, Department of Medicine, University of Colorado School of Medicine,Denver, CO, USAW. ZhouDivision of Clinical Pharmacology, Department of Medicine, University of ... of Colorado School of Medicine,Denver, CO, USAxvi LIST OF CONTRIBUTORSContents of Part IIObituary viForeword viiPreface ixList of contributors xiSECTION 5 Treatment of Parkinson’s disease30. ... risk of developing PD, whereasthere is a decreased risk of PD associated with smok-ing and coffee consumption (Koller et al., 1990). None of these factors, however, explain the large majority of cases...