TY - BOOK AU - Ballweg, Ruth TI - Physician assistant : a guide to clinical practice SN - 9781416044857 SN - 200704127 U1 - 610.7372069 BAL PY - 2008/// CY - Philadelphia, PA PB - Saunders/Elsevier KW - Clinical Competence KW - Clinical Competence - United States KW - Delivery of Health Care - methods - United States KW - Physician Assistants - United States KW - Physicians' assistants KW - Professional Role - United States N1 - Includes bibliographical references and index ER -