authors Bao, Yuhua Zhang, Hao Bruera, Eduardo Portenoy, Russell Rosa, William E Reid, M Carrington Wen, Hefei
has subject area Adult Analgesics, Opioid Breast Neoplasms Colorectal Neoplasms Cross-Sectional Studies Female Humans Lung Neoplasms Male Medical Marijuana Morphine Derivatives Pain Practice Patterns, Physicians' Quality of Life United States