全文获取类型
收费全文 | 4114篇 |
免费 | 297篇 |
国内免费 | 29篇 |
专业分类
耳鼻咽喉 | 34篇 |
儿科学 | 107篇 |
妇产科学 | 56篇 |
基础医学 | 426篇 |
口腔科学 | 106篇 |
临床医学 | 297篇 |
内科学 | 1094篇 |
皮肤病学 | 65篇 |
神经病学 | 222篇 |
特种医学 | 307篇 |
外科学 | 764篇 |
综合类 | 14篇 |
现状与发展 | 1篇 |
预防医学 | 79篇 |
眼科学 | 49篇 |
药学 | 269篇 |
中国医学 | 6篇 |
肿瘤学 | 544篇 |
出版年
2023年 | 58篇 |
2022年 | 123篇 |
2021年 | 196篇 |
2020年 | 115篇 |
2019年 | 149篇 |
2018年 | 173篇 |
2017年 | 155篇 |
2016年 | 135篇 |
2015年 | 130篇 |
2014年 | 156篇 |
2013年 | 182篇 |
2012年 | 280篇 |
2011年 | 327篇 |
2010年 | 167篇 |
2009年 | 111篇 |
2008年 | 211篇 |
2007年 | 205篇 |
2006年 | 187篇 |
2005年 | 211篇 |
2004年 | 164篇 |
2003年 | 178篇 |
2002年 | 138篇 |
2001年 | 48篇 |
2000年 | 67篇 |
1999年 | 63篇 |
1998年 | 43篇 |
1997年 | 32篇 |
1996年 | 31篇 |
1995年 | 33篇 |
1994年 | 23篇 |
1993年 | 16篇 |
1992年 | 26篇 |
1991年 | 16篇 |
1990年 | 29篇 |
1989年 | 32篇 |
1988年 | 33篇 |
1987年 | 22篇 |
1986年 | 19篇 |
1985年 | 32篇 |
1984年 | 16篇 |
1983年 | 9篇 |
1981年 | 7篇 |
1979年 | 6篇 |
1978年 | 8篇 |
1977年 | 6篇 |
1973年 | 6篇 |
1971年 | 8篇 |
1970年 | 10篇 |
1969年 | 10篇 |
1967年 | 6篇 |
排序方式: 共有4440条查询结果,搜索用时 15 毫秒
51.
52.
Tianshu Liu Yuxian Bai Xiaoyan Lin Wei Li Jufeng Wang Xiaochun Zhang Hongming Pan Chunmei Bai Li Bai Ying Cheng Jingdong Zhang Haijun Zhong Yi Ba Wenwei Hu Ruihua Xu Weijian Guo Shukui Qin Nong Yang Jianwei Lu Kohei Shitara Ming Lei Mingshun Li Nicole Bao Tian Chen Lin Shen 《International journal of cancer. Journal international du cancer》2023,152(4):749-760
First-line chemotherapy for advanced/metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric/gastroesophageal junction cancer (GC/GEJC) has poor median overall survival (OS; <1 year). We report efficacy and safety results from Chinese patients in the phase III global CheckMate 649 study of nivolumab plus chemotherapy vs chemotherapy for the first-line treatment of GC/GEJC/esophageal adenocarcinoma (EAC). Chinese patients with previously untreated advanced or metastatic GC/GEJC/EAC were randomized to receive nivolumab (360 mg Q3W or 240 mg Q2W) plus chemotherapy (XELOX [capecitabine and oxaliplatin] Q3W or FOLFOX [oxaliplatin, leucovorin and 5-fluorouracil] Q2W), nivolumab plus ipilimumab (not reported) or chemotherapy alone. OS, blinded independent central review-assessed progression-free survival (PFS), objective response rate (ORR), duration of response (DOR) and safety are reported. Of 1581 patients enrolled and randomized, 208 were Chinese. In these patients, nivolumab plus chemotherapy resulted in clinically meaningful improvement in median OS (14.3 vs 10.2 months; HR 0.61 [95% CI: 0.44-0.85]), median PFS (8.3 vs 5.6 months; HR 0.57 [95% CI: 0.40-0.80]), ORR (66% vs 45%) and median DOR (12.2 vs 5.6 months) vs chemotherapy, respectively. The safety profile was acceptable, with no new safety signals observed. Consistent with results from the global primary analysis of CheckMate 649, nivolumab plus chemotherapy demonstrated a clinically meaningful improvement in OS and PFS and higher response rate vs chemotherapy and an acceptable safety profile in Chinese patients. Nivolumab plus chemotherapy represents a new standard first-line treatment for Chinese patients with non-HER2-positive advanced GC/GEJC/EAC. 相似文献
53.
54.
55.
56.
57.
58.
59.
Kensaku Yamaga Kohei Shomori Hideki Yamashita Koji Endo Chikako Takeda Takeshi Minamizaki Haruhiko Yoshida Ryota Teshima Hisao Ito 《The Journal of dermatology》2014,41(2):163-167
Proliferative fasciitis (PF) is a benign, discrete proliferation of fibroblasts or myofibroblasts in soft tissue. Proliferative fasciitis mostly occurs in adults and is often confused with a sarcoma because of its rapid growth and peculiar histological features. We report a case of PF mimicking a sarcoma which developed in a 13‐year‐old boy, who noticed a painful tumor, with gradual enlargement, in his right lower leg. Magnetic resonance imaging revealed that the tumor measured 34 mm × 20 mm × 41 mm and was located in the subcutaneous tissue. The tumor was surgically resected. Pathologically, the tumor was composed of a proliferation of atypical spindle cells, admixed with larger ganglion‐like cells. Immunohistochemically, the tumor cells were positive for vimentin, cytokeratin, smooth muscle actin, HHF‐35 and Fli‐1. The tumor was subsequently diagnosed as a PF, although it was difficult to differentiate from a sarcoma. Five years after surgery, the postoperative course has been uneventful with no recurrence or metastasis. 相似文献
60.