Yufan Yang

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BACKGROUND This systematic analysis aims to assess the efficacy of PD-1/PD-L1 blockades compared with non-PD-1/PD-L1 therapy and investigate the potential predictive factors in epithelial carcinoma patients. RESULTS A total of 11 trials with 6716 patients of melanoma, non-small cell lung cancer (NSCLC) and renal cell carcinoma (RCC) were included. The(More)
The concept of crowdsourcing has been introduced for years and greatly accepted by companies and enterprises. As opposed to current marketing systems, this paper designs a new marketing system by merging the idea of crowdsourcing into marketing information system (MkIS). Our purpose is to develop a cloud-based MkIS which serves as a platform and provides(More)
Radiofrequency catheter ablation for atrial fibrillation is an effective approach for treating atrial fibrillation. Its complications have attracted much attention, of which the stiff left atrial syndrome is a recently discovered complication that has not been completely understood. This study aims to investigate the concept, pathologic basis, clinical(More)
In the original algorithm for grey correlation analysis, the detected edge is comparatively rough and the thresholds need determining in advance. Thus, an adaptive edge detection method based on grey correlation analysis is proposed, in which the basic principle of the original algorithm for grey correlation analysis is used to get adaptively automatic(More)
Region growing-based color image segmentation approaches suffer from expensive computation cost. In order to overcome this issue, a novel region-based color image segmentation method based on P systems is proposed in this paper. A tissue-like P system is designed in such a way that an adaptive selection of target regions is achieved. The proposed method is(More)
We read with great interest the paper by Di Biase et al. (1). These investigators suggested that the recurrence of atrial fibrillation (AF) was significantly reduced by combined pulmonary vein and left atrial appendage (LAA) isolation (LAAI) for the treatment of persistent and long-standing persistent AF without increasing the occurrence of complications.(More)
Patients with tumors of 3 to 5 cm were divided into stages T2a (3 to 4 cm) and T2b (4 to 5 cm) based on the 8th tumor-node-metastasis staging system for lung cancer. The objective of our study was to explore appropriate surgical modalities for the new stages, T2a and T2b. We selected 6,996 node-negative non-small-cell lung cancer patients with tumor sizes(More)
⁎ Corresponding author at: Second Xiangya Hospit University, Cardiac Catheterization Center & Departm Xiangya Hospital attached to Central South University, Changsha, Hunan 410011, People's Republic of China. E-mail address: liuqiming0731@126.com (Q. Liu). 1 Second Xiangya Hospital attached to Central South Un Center & Department of Cardiology of Second(More)