全文获取类型
收费全文 | 2623篇 |
免费 | 139篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 82篇 |
儿科学 | 42篇 |
妇产科学 | 49篇 |
基础医学 | 332篇 |
口腔科学 | 55篇 |
临床医学 | 179篇 |
内科学 | 633篇 |
皮肤病学 | 36篇 |
神经病学 | 136篇 |
特种医学 | 79篇 |
外科学 | 444篇 |
综合类 | 13篇 |
预防医学 | 82篇 |
眼科学 | 50篇 |
药学 | 146篇 |
中国医学 | 4篇 |
肿瘤学 | 406篇 |
出版年
2023年 | 38篇 |
2022年 | 71篇 |
2021年 | 115篇 |
2020年 | 63篇 |
2019年 | 64篇 |
2018年 | 86篇 |
2017年 | 66篇 |
2016年 | 61篇 |
2015年 | 72篇 |
2014年 | 91篇 |
2013年 | 107篇 |
2012年 | 131篇 |
2011年 | 152篇 |
2010年 | 75篇 |
2009年 | 56篇 |
2008年 | 107篇 |
2007年 | 101篇 |
2006年 | 97篇 |
2005年 | 94篇 |
2004年 | 95篇 |
2003年 | 91篇 |
2002年 | 95篇 |
2001年 | 81篇 |
2000年 | 88篇 |
1999年 | 70篇 |
1998年 | 21篇 |
1997年 | 23篇 |
1996年 | 24篇 |
1995年 | 18篇 |
1994年 | 15篇 |
1993年 | 18篇 |
1992年 | 52篇 |
1991年 | 68篇 |
1990年 | 59篇 |
1989年 | 35篇 |
1988年 | 19篇 |
1987年 | 32篇 |
1986年 | 20篇 |
1985年 | 28篇 |
1984年 | 17篇 |
1983年 | 10篇 |
1979年 | 9篇 |
1978年 | 8篇 |
1973年 | 8篇 |
1971年 | 8篇 |
1970年 | 14篇 |
1969年 | 11篇 |
1968年 | 12篇 |
1967年 | 11篇 |
1966年 | 7篇 |
排序方式: 共有2768条查询结果,搜索用时 15 毫秒
51.
52.
Yuya Nakano Madoka Aizawa Yuko Kako Katsumi Mizuno Kazuo Itabashi Gen Nishimura 《The spine journal》2013,13(7):e5-e7
Background contextA digit/rib-like ectopic bone is a rare congenital anomaly that is most commonly seen in the thorax or pelvis. There is a single report of an adult possessing a phalanx-like bone in the cervical region; however, whether the abnormal bone was congenital or acquired remains elusive.PurposeTo elucidate that a phalanx-like bone in the cervical region represents a congenital anomaly.Study designCase report.MethodsReport of the imaging findings in a neonate with a palpable bone projection in the posterior neck.ResultsPlain radiographs demonstrated an ectopic bone posterior to the spinous process of the C5 vertebra. Three-dimensional computed tomography demonstrated that the anomalous bone was attached to the left lamina of the C5 vertebra and that there was abnormal segmentation of the left side of the cervical spine.ConclusionsThe anomalous bone in the neck is a congenital malformation that is accompanied by the maldevelopment of the cervical spine. 相似文献
53.
54.
Ito Shuichi Nishiyama Yuya Sugiura Kenkichi Enya Kazuaki 《Clinical and experimental nephrology》2022,26(4):350-358
Clinical and Experimental Nephrology - Azilsartan is an angiotensin II receptor blocker indicated for the treatment of adult hypertension. A previous single-dose study suggested that azilsartan may... 相似文献
55.
56.
57.
Takeshi Kuwada Masahiro Shiokawa Yuzo Kodama Sakiko Ota Nobuyuki Kakiuchi Yasuhito Nannya Hajime Yamazaki Hiroyuki Yoshida Takeharu Nakamura Shimpei Matsumoto Yuya Muramoto Shuji Yamamoto Yusuke Honzawa Katsutoshi Kuriyama Kanako Okamoto Tomonori Hirano Hirokazu Okada Saiko Marui Hiroshi Seno 《Gastroenterology》2021,160(7):2383-2394.e21
58.
59.
Kazuo Tsunoda M.D. Ph.D. Keishi Abe Ken Omata Takeshi Hagino Naoyoshi Minami Masanori Munakata Kazunori Yoshida Hiromichi Sakuma Seiichi Misawa Syuuji Arima Yutaka Imai Kaoru Yoshinaga 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》1993,7(2):253-256
Summary The effects of cicletanine, a new antihypertensive agent, on the prostaglandin-kallikrein system and the reninangiotensin system were studied. A single oral dose of 200 mg cicletanine or placebo was administered to 9 healthy male volunteers, with samples of blood and urine obtained before and 2 hours after drug administration. Cicletanine increased the urine flow, urinary excretion of sodium, and fractional excretion of sodium by 47%, 115%, and 104%, respectively. While the excretion of 6-keto-prostaglandin-F1 was enhanced significantly, urinary excretion of thromboxane-B2, prostaglandin-E2, and kallikrein were unchanged. Cicletanine also did not alter plasma renin activity, plasma aldosterone concentration, or creatinine clearance. These observations suggest that cicletanine may suppress sodium reabsorption at the nephron, and it may stimulate prostacyclin generation with no effect on that of thromboxane-A2. Thus cicletanine may be beneficial in the management of cardiovascular disorders in which the equilibrium between prostacyclin and thromboxane is disturbed. 相似文献
60.
A. Tsunoda T. Takahashi K. Hayashi Y. Yagi H. Kusanagi 《Techniques in coloproctology》2018,22(6):425-431