Different treatments for two-part and three-part proximal humeral fractures by Neer classification: follow-up results analyzed using clinical economics  
Qiu Zhongpeng, Li Ke, Li Gang, Liu Keyu, Du Xinhui, Meng Defeng, Shi Chenhui, Wang Weishan
Chinese Journal of Tissue Engineering Research . 2019, (8): 1188 -1195 .  DOI: 10.3969/j.issn.2095-4344.1082