Current Situation, Determinants, and Solutions to Drug Shortages in Shaanxi Province, China: A Qualitative Study Yang, Caijun ; Wu, Lina ; Cai, Wenfang ; Zhu, Wenwen ; Shen, Qian ; Li, Zongjie ; Fang, Yu Abstract Publication: PLoS ONE Pub Date: October 2016 DOI: 10.1371/journal.pone.0165183 Bibcode: 2016PLoSO..1165183Y