全文获取类型
收费全文 | 1384篇 |
免费 | 78篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 7篇 |
儿科学 | 60篇 |
妇产科学 | 8篇 |
基础医学 | 208篇 |
口腔科学 | 41篇 |
临床医学 | 90篇 |
内科学 | 326篇 |
皮肤病学 | 29篇 |
神经病学 | 108篇 |
特种医学 | 26篇 |
外科学 | 210篇 |
综合类 | 7篇 |
预防医学 | 56篇 |
眼科学 | 18篇 |
药学 | 153篇 |
中国医学 | 5篇 |
肿瘤学 | 115篇 |
出版年
2023年 | 13篇 |
2022年 | 38篇 |
2021年 | 50篇 |
2020年 | 15篇 |
2019年 | 32篇 |
2018年 | 39篇 |
2017年 | 46篇 |
2016年 | 28篇 |
2015年 | 37篇 |
2014年 | 50篇 |
2013年 | 63篇 |
2012年 | 84篇 |
2011年 | 85篇 |
2010年 | 51篇 |
2009年 | 27篇 |
2008年 | 71篇 |
2007年 | 56篇 |
2006年 | 47篇 |
2005年 | 53篇 |
2004年 | 53篇 |
2003年 | 39篇 |
2002年 | 46篇 |
2001年 | 30篇 |
2000年 | 37篇 |
1999年 | 34篇 |
1998年 | 16篇 |
1997年 | 13篇 |
1996年 | 14篇 |
1994年 | 7篇 |
1993年 | 6篇 |
1992年 | 23篇 |
1991年 | 13篇 |
1990年 | 25篇 |
1989年 | 29篇 |
1988年 | 17篇 |
1987年 | 17篇 |
1986年 | 12篇 |
1985年 | 17篇 |
1984年 | 5篇 |
1983年 | 9篇 |
1980年 | 5篇 |
1979年 | 9篇 |
1975年 | 5篇 |
1974年 | 5篇 |
1973年 | 7篇 |
1970年 | 8篇 |
1969年 | 6篇 |
1968年 | 11篇 |
1967年 | 5篇 |
1966年 | 14篇 |
排序方式: 共有1467条查询结果,搜索用时 15 毫秒
21.
22.
23.
24.
25.
Kosuke Tanaka Akiko Sasaki Hideto Egashira Shinichi Teshima Karen Kimura Takashi Nishino Tomohiko Tazawa Junichi Tasaki Chikamasa Ichita Sakue Masuda Kazuya Koizumi Makoto Kako 《Internal medicine (Tokyo, Japan)》2021,60(7):999
We herein report the definitive diagnosis of rectovaginal endometriosis in two cases. Case 1 involved a 46-year-old woman with abdominal pain and hematochezia. The diagnosis after the first and second examinations using lower gastrointestinal (GI) endoscopy was unclear. Differential diagnoses included mucosa-associated lymphoid tissue and colorectal cancer. The third lower GI endoscopy with a targeted biopsy, performed during menstruation, confirmed rectovaginal endometriosis. Case 2 involved a 38-year-old woman with hematochezia. Lower GI endoscopy during menstruation revealed rectovaginal endometriosis. When rectovaginal or bowel endometriosis is suspected, lower GI endoscopy and a targeted biopsy during menstruation can prevent unnecessary surgery. 相似文献
26.
A giant retention cyst of the pancreas (cystic dilatation of dorsal pancreatic duct) associated with pancreas divisum 总被引:1,自引:0,他引:1
Morise Z Yamafuji K Tsuji T Asami A Takeshima K Hayashi N Baba H Yoshida F Abe Y Tokura Y 《Journal of gastroenterology》2002,37(12):1079-1082
We describe a rare case of pancreas divisum associated with a giant retention cyst (cystic dilatation of the dorsal pancreatic
duct), presumably formed following obstruction of the minor papilla. The patient was treated by pancreatico(cysto)jejunostomy.
A 50-year-old man was admitted with complaints of increasing upper abdominal distension and body weight loss. There was no
previous history of pancreatitis, gallstones, drinking, or abdominal injury. An elastic-hard tumor-like resistance was palpable
in the upper abdomen. Computed tomography and ultrasound (US) examinations revealed a giant cystic lesion expanding from the
pancreas head to the tail. Endoscopic retrograde cholangiopancreatography findings showed a looping pancreatic duct which
drained only the head and uncinate process of the pancreas to the main papilla. A US-guided puncture to the cystic lesion
revealed that the lesion continued to the main pancreatic duct in the tail of pancreas. The lesion was connected to a small
cystic lesion, which was located inside the minor papilla, and ended there. The amylase level in liquid aspirated from the
cyst was 37 869 IU/l, and the result of cytological examination of the liquid showed class II. A pancreatico(cysto)jejunostomy
was performed, with the diagnosis being pancreas divisum associated with a retention cyst following obstruction of the minor
papilla. The histological findings of a specimen from the cyst wall revealed that the wall was a pancreatic duct covered with
mildly inflammatory duct epithelium; there was no evidence of neoplasm. The patient is currently well, and a CT examination
2 years after the operation showed disappearance of the cyst and normal appearance of the whole pancreas.
Received: April 24, 2001 / Accepted: September 14, 2001 相似文献
27.
28.
29.
Rat‐to‐Chinese tree shrew heart transplantation is a novel small animal model to study non‐Gal‐mediated discordant xenograft humoral rejection 下载免费PDF全文
30.
Yuko Kitagawa Hitoshi Idani Haruhiro Inoue Harushi Udagawa Ichiro Uyama Harushi Osugi Natsuya Katada Hiroya Takeuchi Yasunori Akutsu Shinya Asami Ken Ishikawa Akihiko Okamura Taiki Ono Fumihiko Kato Toshiki Kawabata Koichi Suda Tomoko Takesue Tsuyoshi Tanaka Mai Tsutsui Kei Hosoda Satoru Matsuda Tatsuo Matsuda Mariko Mani Tatsuya Miyazaki 《Asian journal of endoscopic surgery》2015,8(2):114-124