What do we know about technological innovation of firms in China? What are the directions for future research on this topic? This paper summarizes and discusses some of the newest literature on technological innovation of firms in China in the following three ways: (1) the influence of firms' external factors, (2) the influence of firms' internal factors, and (3) interfirm cooperation factors. Based on the analysis of these articles, we propose a framework which highlights these influencing factors, decision-making and implementation of technological innovation and innovation performance, in the context of China's emerging economy. This framework sheds lights on future innovation research.
Background: The aim of this study is to assess the clinical effectiveness and safety of hyaluronic acid gel for the prevention of postoperative intrauterine adhesions (IUAs). Methods: PubMed, Cochrane Library, Embase and ClinicalTrials.gov databases were searched for randomized controlled trials. Results: Six RCTs with a total of 564 patients met the inclusion criteria. The meta-analysis showed that, compared to no other treatment method, hyaluronic acid gel significantly reduced the rate of any IUA (risk ratio [RR] 0.68; 95% CI 0.53–0.86; p = 0.03; I2 = 64%) and adhesion score (standard mean difference = –2.90; 95% CI –4.61 to –1.49; p < 0.00001; I2 = 98%) following intraperitoneal or intrauterine surgery. Treatment lowered the rate of IUAs classified as moderate (RR 0.26; 95% CI 0.13–0.52; p = 0.13; I2 = 0%), but not those deemed mild (RR 0.86; 95% CI 0.62–1.21; p = 0.39; I2 = 3%) or severe (RR 0.33; 95% CI 0.03–3.09; p = 0.33; I2 = 0). Compliance with hyaluronic acid gel treatment was low. Conclusion: Hyaluronic acid gel can prevent IUAs, particularly those with moderate severity and a lower adhesion score.
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