TY - BOOK AU - Stommel, Manfred AU - Wills, Celia E. TI - Clinical research: concepts and principles for advanced practice nurses AV - RT 81.5 .St86 2004 PY - 2004/// CY - United States PB - Lippincott Williams & Wilkins KW - Nursing KW - Research KW - Methodology KW - Qualitative research KW - Research Design KW - Clinical medicine ER -