Fracture behavior of mandibular premolars with flared root canals restored with different post-and-core systems and root rehabilitation
LIU Cui-ling, GAO Xu, LAN Jing, JI Ping
West China Journal of Stomatology . 2010, (03): 286 -289 .  DOI: 10.3969/j.issn.1000-1182.2010.03.015