A nationwide survey of adherence to analgesic drugs among cancer patients in Taiwan: prevalence, determinants, and impact on quality of life

Wen Chi Chou, Jen Shi Chen, Chia Yen Hung, Chang Hsien Lu, Yu Yun Shao, Tzeon Jye Chiou, Yung Chuan Sung, Kun Ming Rau, Chia Jui Yen, Su Peng Yeh, Ta Chih Liu, Ming Fang Wu, Ming Yang Lee, Ming Sun Yu, Wen Li Hwang, Pang Yu Lai, Cheng Shyong Chang, Ruey Kuen Hsieh