1Effects of extracorporeal shock wave combined with veronica peregrina on the expressions of BMP-2 and VEGF mRNA in the treatment of fracture nonunion469-4722Effect of sodium valproate on the expressions of GFAP in rats with epileptic brain injuryLU Wang-ke, GAO Ran472-4753The effect of refractive correction alone on preschool childrens' visual improvementLAN Fang-fang, ZHAO Wu-xiao, GAN Lu475-4784The application of the simple nasal balloon in the treatment of otitis media with effusion in children478-4805Risk factors of lung infection in patients with stroke: a Meta-analysis481-4846Construction and evaluation of the clinical nursing pathway of whole lung lavage in pneumoconiosis patients484-4887The surgical treatment experience of Bentall procedure in municipal hospitals in Liuzhou488-4918Effect of amiodarone on the recurrence of paroxysmal atrial fibrillation after radiofrequency catheter ablationZHAO Yu-jie491-4949Diagnostic value of poor R-wave progression in patients with anterior acute myocardial infarction494-49610Expression and significance of Pre-B cell colony enhancing factor in new born rats with hyperoxia-induced bronchopulmonary dysplasiaZHENG Xue497-50211The clinical effect of Doula combined with unprotected delivery on natural childbirthHUANG Dan-dan, YANG Ling-ling502-50412The clinical effect of ritodrine hydrochloride combined with atosiban on patients with premature birthCHEN Chun-yan504-50713Comparison of the clinical effect between epidural anesthesia and combined spinal-epidural anesthesia for labor analgesiaHE Ping, LI Qing-song507-51014The efficacy of minimally invasive removal of intracranial hematoma in treatment of thalamic hemorrhageSUN Jing-hong, SUI Chang-bai510-51215Effects of carvedilol and metoprolo on the children with dilated cardiomyopathyFENG Ying-jun, LI Ying-ying513-51516Clinical observation of NIPPV in treatment of COPDCHEN Wen-qiang515-51817The value of transvaginal untrasound in diagnosing intrauterine adhesions in the primary-level hospitalMO Jin-nai518-52018Clinical observation of hysteroscopy-lapar-oscopy combined with surgery on uterine incision diverticulum after caesarean sectionGAO Mei521-52319Clinical observation of quadruple therapy containing bismuth in the treatment of gastric ulcerFEI Bi-miao, WANG Cong-jian523-52520Forecast score of postpartum hemorrhage and prevention mechanism in the prevention of postpartum hemorrhage during cesarean sectionPENG Dan, LI Li-qin, GONG Cui-mei526-528 