Intraoperative changes of surgical approach and a second surgery after percutaneous endoscopic surgery for lumbar spinal stenosis LianSong Lu; ZhenShan Yuan; HaoJie Li; ShaoHua Sun;

Surgical complications in the first and second semesters of the general surgery medical residence. A study of 14063 cases Bruno Henrique Alvarenga; Izabel Cristina Rios; Francisco de Salles Collet e Silva; Edivaldo Massazo Utiyama;

Changes in PEDF, MMP-2, and TGF-ß2 levels in the aqueous humor of cataract patients and their correlation with disease severity Yong Feng Lin; Jin Xia Xie; Xiao Luan Chen;