全文获取类型
收费全文 | 14940篇 |
免费 | 677篇 |
国内免费 | 96篇 |
专业分类
耳鼻咽喉 | 265篇 |
儿科学 | 363篇 |
妇产科学 | 112篇 |
基础医学 | 1912篇 |
口腔科学 | 394篇 |
临床医学 | 1021篇 |
内科学 | 3638篇 |
皮肤病学 | 272篇 |
神经病学 | 1270篇 |
特种医学 | 469篇 |
外科学 | 2939篇 |
综合类 | 71篇 |
一般理论 | 1篇 |
预防医学 | 474篇 |
眼科学 | 176篇 |
药学 | 804篇 |
中国医学 | 22篇 |
肿瘤学 | 1510篇 |
出版年
2023年 | 82篇 |
2022年 | 139篇 |
2021年 | 285篇 |
2020年 | 158篇 |
2019年 | 240篇 |
2018年 | 317篇 |
2017年 | 236篇 |
2016年 | 325篇 |
2015年 | 317篇 |
2014年 | 412篇 |
2013年 | 487篇 |
2012年 | 813篇 |
2011年 | 873篇 |
2010年 | 508篇 |
2009年 | 458篇 |
2008年 | 707篇 |
2007年 | 785篇 |
2006年 | 785篇 |
2005年 | 810篇 |
2004年 | 762篇 |
2003年 | 719篇 |
2002年 | 692篇 |
2001年 | 398篇 |
2000年 | 427篇 |
1999年 | 404篇 |
1998年 | 214篇 |
1997年 | 149篇 |
1996年 | 153篇 |
1995年 | 136篇 |
1994年 | 105篇 |
1993年 | 97篇 |
1992年 | 262篇 |
1991年 | 243篇 |
1990年 | 235篇 |
1989年 | 204篇 |
1988年 | 175篇 |
1987年 | 195篇 |
1986年 | 166篇 |
1985年 | 154篇 |
1984年 | 111篇 |
1983年 | 99篇 |
1982年 | 48篇 |
1980年 | 53篇 |
1979年 | 90篇 |
1978年 | 67篇 |
1977年 | 61篇 |
1971年 | 58篇 |
1969年 | 47篇 |
1968年 | 53篇 |
1967年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
Heterozygous nonsense mutations near the C‐terminal region of IGF1R in two patients with small‐for‐gestational‐age‐related short stature
下载免费PDF全文
![点击此处可从《Clinical endocrinology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
4.
Byonggu An Yumi Zen Hiroya Akabori Naomi Kitamura Hiroyuki Ohta Akinori Otsuki Hiroo Mizuta Tomoyuki Tsujikawa Eiji Mekata 《Asian journal of endoscopic surgery》2021,14(1):120-123
A Bochdalek hernia (BH) is a congenital abnormality with incomplete closure of the diaphragm. It is usually manifested in infants but rarely in adults. Here, we report an adult patient with gastric volvulus and giant BH that were safely repaired by endoscopic reduction and elective laparoscopic surgery, respectively. A 79-year-old woman presented with left upper abdominal pain but no history of trauma. CT revealed a giant BH with gastric volvulus. After emergency endoscopic reduction of the volvulus, elective laparoscopic repair of the BH was performed. The 8 × 8-cm defect was repaired with interrupted nonabsorbable sutures and a mesh. The patient's postoperative course was uneventful, and no complications or recurrence were observed in the 6 months that followed. 相似文献
5.
Comparative safety study on severe anemia by simeprevir versus telaprevir‐based triple therapy for chronic hepatitis C
下载免费PDF全文
![点击此处可从《Journal of gastroenterology and hepatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Eiichi Ogawa Norihiro Furusyo Eiji Kajiwara Hideyuki Nomura Akira Kawano Kazuhiro Takahashi Kazufumi Dohmen Takeaki Satoh Koichi Azuma Makoto Nakamuta Toshimasa Koyanagi Kazuhiro Kotoh Shinji Shimoda Jun Hayashi The Kyushu University Liver Disease Study Group 《Journal of gastroenterology and hepatology》2015,30(8):1309-1316
6.
7.
S Yamaguchi H Fujii S Kaneko S Yachiku F Inada T Anzai T Kobayashi K Furuta H Ishida 《Nihon Hinyōkika Gakkai zasshi. The japanese journal of urology》1991,82(10):1561-1567
Ultrasonotomograms of 22 kidneys were obtained in 11 patients with renal-acute renal failure (renal-ARF). The underlying diseases of renal-ARF were acute tubular necrosis in 8 patients and acute on-set chronic glomerulonephritis in 3 patients. They were treated by hemodialysis in 10 patients and intermittent peritoneal dialysis in 1 patient. Ultrasonic measurement of the size of kidneys revealed that the thickness (anterior-posterior diameter) and the ratio of thickness to length (T/L) were greater in patients with ARF than in those with chronic renal failure and normal renal function. The patients with a low value of T/L (under 0.60) had a significantly greater urine volume than those with high a value of T/L (0.60 or more). The sonographic features of renal-ARF kidneys were marked increase in parenchymal echogenicity and appearance of hypoechoic swollen renal pyramids with sharpness of the corticomedullary border. In the course of ARF, these sonographic changes gradually disappeared when the patients had recovered from ARF. However, the prognosis was poor in patients with severer sonographic findings. We believe that repeated ultrasonic examination of the kidneys in patients with renal-ARF is useful for not only differential diagnosis of post-renal urinary obstruction but evaluating the course of ARF. 相似文献
8.
Y Imamura K Yanagihara Y Fukuda Y Kaneko M Seki K Izumikawa Y Miyazaki Y Hirakata T Sawa J P Wiener-Kronish S Kohno 《The European respiratory journal》2007,29(5):965-968
Pseudomonas aeruginosa is one of the most important pathogens in patients with chronic airway conditions, such as cystic fibrosis and diffuse panbronchiolitis. Type III secretion system-mediated virulence factors contribute to the lung damage in chronic P. aeruginosa infection. The effects of the anti-PcrV immunoglobulin (Ig)G, which blocks the type III secretion system, were evaluated in a mouse model of chronic P. aeruginosa infection. On bacteriological examination, anti-PcrV IgG showed no bactericidal effects. On bronchoalveolar lavage fluid (BALF) analysis, total cell number and neutrophil ratios in the anti-PcrV IgG-treated groups were lower than those in the control group. In addition, macrophage inflammatory protein-2, tumour necrosis factor-alpha, and interleukin-beta concentrations in BALF were lower in the anti-PcrV IgG-treated groups when compared with controls. Plasma anti-PcrV IgG titre was elevated after administration of anti-PcrV IgG. Although plasma titre decreased gradually, a significant concentration was maintained during the experimental period. These data suggest that anti-PcrV immunoglobulin G reduces the inflammatory reaction caused by chronic Pseudomonas aeruginosa respiratory infection and may be useful in treating respiratory diseases. 相似文献
9.
Takayuki Murakami Atsushi Komiya Kunihisa Mikata Shigeki Kaneko Ichiro Ikeda 《International journal of urology》2007,14(3):240-241
Abstract: A 66-year-old man was referred to our hospital with chest discomfort and shortness of breath. Seven months previously he had undergone a laparoscopic left nephroureterectomy for a left renal pelvic tumor and was given two cycles of adjuvant chemotherapy (methotrexate, epirubicin and cisplatin). Echocardiogram showed an 8-mm sized mass extending from the right atrium into the right ventricle. On computed tomography, multiple lung tumors, as well as the right atrial and ventricular mass, were seen. The patient died of acute heart failure caused by right ventricular outflow obstruction. On autopsy, a right atrial and ventricular metastasis of the initial transitional cell carcinoma was found. The patient's cause of death was acute heart failure as a result of cardiac metastasis of his initial renal pelvic carcinoma. 相似文献
10.
Tadamasa Miyauchi Hiroshi Takiya Toshihiko Sawamura Eiji Murakami 《The Japanese Journal of Thoracic and Cardiovascular Surgery》2005,53(4):206-209
Pericardial abscess is rare in healthy individuals, especially the amebic type. We report a case of pericardial abscess and
cardiac tamponade due to intrapericardial rupture of an amebic liver abscess. A 31-year old Japanese male complained of fever
to a local hospital. A liver mass was discovered in his left hepatic lobe by an abdominal echogram. He was referred to the
internal department of our hospital and was treated with quinolone antibiotics. Two weeks after medication, he suddenly complained
of epigastralgia and severe orthopnea and was admitted. Abdominal computed tomographic scan showed an enlarged liver mass,
and massive pericardial effusion suggested cardiac tamponade. He underwent an emergency subxiphoid partial pericardiectomy
under local anesthesia. 1,000 ml of light brownish fluid was removed and his condition improved. Although no ameba was cultivated
from the pus, the amebic serological test was positive. Metronidazole was administered and the patients was discharged 31
days after surgery. 相似文献