全文获取类型
收费全文 | 2531篇 |
免费 | 131篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 30篇 |
儿科学 | 80篇 |
妇产科学 | 36篇 |
基础医学 | 192篇 |
口腔科学 | 80篇 |
临床医学 | 239篇 |
内科学 | 524篇 |
皮肤病学 | 134篇 |
神经病学 | 177篇 |
特种医学 | 54篇 |
外科学 | 521篇 |
综合类 | 50篇 |
一般理论 | 4篇 |
预防医学 | 59篇 |
眼科学 | 154篇 |
药学 | 134篇 |
中国医学 | 11篇 |
肿瘤学 | 191篇 |
出版年
2024年 | 3篇 |
2023年 | 22篇 |
2022年 | 47篇 |
2021年 | 110篇 |
2020年 | 53篇 |
2019年 | 103篇 |
2018年 | 104篇 |
2017年 | 84篇 |
2016年 | 92篇 |
2015年 | 109篇 |
2014年 | 136篇 |
2013年 | 165篇 |
2012年 | 189篇 |
2011年 | 218篇 |
2010年 | 109篇 |
2009年 | 104篇 |
2008年 | 130篇 |
2007年 | 130篇 |
2006年 | 128篇 |
2005年 | 112篇 |
2004年 | 118篇 |
2003年 | 93篇 |
2002年 | 87篇 |
2001年 | 13篇 |
2000年 | 15篇 |
1999年 | 12篇 |
1998年 | 18篇 |
1997年 | 12篇 |
1996年 | 12篇 |
1995年 | 13篇 |
1994年 | 14篇 |
1993年 | 6篇 |
1992年 | 8篇 |
1991年 | 10篇 |
1990年 | 8篇 |
1989年 | 13篇 |
1988年 | 12篇 |
1987年 | 8篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 6篇 |
1979年 | 7篇 |
1978年 | 4篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1971年 | 3篇 |
排序方式: 共有2670条查询结果,搜索用时 15 毫秒
51.
52.
Pradeep Kumar Sharma Bhaskar Saikia Rachna Sharma Kumar Ankur Praveen Khilnani Vinay Kumar Aggarwal Hae Cheong 《Indian journal of pediatrics》2014,81(10):1095-1098
Bartter syndrome is a group of inherited, salt-losing tubulopathies presenting as hypokalemic metabolic alkalosis with normotensive hyperreninemia and hyperaldosteronism. Around 150 cases have been reported in literature till now. Mutations leading to salt losing tubulopathies are not routinely tested in Indian population. The authors have done the genetic analysis for the first time in the Bartter syndrome on two cases from India. First case was antenatal Bartter syndrome presenting with massive polyuria and hyperkalemia. Mutational analysis revealed compound heterozygous mutations in KCNJ1(ROMK) gene [p(Leu220Phe), p(Thr191Pro)]. Second case had a phenotypic presentation of classical Bartter syndrome however, genetic analysis revealed only heterozygous novel mutation in SLC12A gene p(Ala232Thr). Bartter syndrome is a clinical diagnosis and genetic analysis is recommended for prognostication and genetic counseling. 相似文献
53.
54.
Yamile Haito-Chavez Joanna K. Law Thomas Kratt Alberto Arezzo Mauro Verra Mario Morino Reem Z. Sharaiha Jan-Werner Poley Michel Kahaleh Christopher C. Thompson Michele B. Ryan Neel Choksi B. Joseph Elmunzer Sonia Gosain Eric M. Goldberg Rani J. Modayil Stavros N. Stavropoulos Drew B. Schembre Christopher J. DiMaio Vinay Chandrasekhara Muhammad K. Hasan Shyam Varadarajulu Robert Hawes Victoria Gomez Timothy A. Woodward Sergio Rubel-Cohen Fernando Fluxa Frank P. Vleggaar Venkata S. Akshintala Gottumukkala S. Raju Mouen A. Khashab 《Gastrointestinal endoscopy》2014
55.
56.
57.
58.
Thiruppathy K Roy A Preziosi G Pannicker J Emmanuel A 《Digestive diseases and sciences》2012,57(7):1908-1914
Background
Bowel dysfunction amongst multiple sclerosis (MS) and spinal cord injury (SCI) patients often manifests as fecal incontinence (FI) or constipation, but the pathophysiology is poorly understood. Anorectal physiology provides an objective assessment of lower bowel functions and is increasingly being used in clinical practice.Aim
The purpose of this study was to correlate symptoms of bowel dysfunction in patients with spinal cord disease with findings in anorectal physiology. We hypothesized that specific abnormalities will correlate with symptoms: prolonged recto-anal inhibitory reflex in patients with incontinence and decreased rectal mucosal blood flow in patients with constipation.Methods
Forty-nine patients with MS (35 with predominant FI and 14 constipation), 46 supraconal SCI (mixed symptom load), and 21 healthy volunteers matched for age and sex were studied. Subjects completed validated constipation and FI symptom questionnaires. Patients underwent standard anorectal physiology, including assessment of rectal mucosal blood flow and recto-anal inhibitory reflex (RAIR).Results
Severity of constipation correlates significantly with distension sensitivity (urge volume [r = 0.68, p = 0.002] and maximal volume [r = 0.39, p = 0.03]). Severity of constipation also correlated with diminished rectal mucosal blood flow in both patient groups (r = ?0.51, p = 0.006). In both groups, constipation correlated with diminished relaxation of the sphincters in the RAIR whilst fecal incontinence correlated with a prolonged duration of RAIR (r = 0.33, p = 0.009) and recovery phase (r = 0.37, p = 0.05).Conclusion
Bowel symptoms in patients with MS and SCI correlate with specific alterations of anorectal physiology. This provides objective assessment of bowel symptoms and may allow tailored treatment to individual patients. 相似文献59.
Vinay Kumaran Naimish N. Mehta Vibha Varma Shashank Pandey Prashantha S. Rao Barun Nath Ashwin Mallya Naresh Bansal Samarjit Ghuman Sunita Bhalla Samiran Nundy 《Indian journal of gastroenterology》2012,31(4):179-185
Aim
We describe the first living donor intestinal transplant (LDIT) in India and discuss the indications and problems of this complex procedure.Methods
A 43-year-old male patient required massive bowel resection for gangrene due to thrombosis of the superior mesenteric artery. He was maintained on parenteral nutrition but developed cholestasis and well as repeated catheter related infections with progressive loss of venous access due to thrombosis of central veins. A LDIT was performed using 200?cm of small intestine from the patient's son. The graft was based on the continuation of the superior mesenteric vessels beyond the ileocolic branch. The artery was anastomosed directly to the aorta and the vein to the venacava.Results
The graft functioned well and he was weaned off parenteral nutrition. However, he later developed complications (wound dehiscence and enterocutaneous fistula) and developed sepsis. He succumbed to sepsis with a functioning graft 6?weeks after the transplant. The donor recovered uneventfully and was discharged on the 4th postoperative day.Conclusions
LDIT can be life saving in patients with intestinal failure and failure of parenteral nutrition. There is a need to introduce this modality in India. In a setting of scarcity of deceased donor organs the living donor option has advantages. 相似文献60.
Lalwani S Govindasamy M Gupta M Siraj F Varma V Mehta N Kumaran V Mohan N Chopra P Arora A Agarwal S Soin A Nundy S 《Indian journal of gastroenterology》2012,31(3):139-143
Mucormycosis of the gastrointestinal tract is a rare infection that usually occurs in patients who are immunocompromised and carries a high mortality. We report four cases of gastrointestinal mucormycosis seen over a one year period with different presentations, risk factors and different anatomical sites of involvement. A preoperative diagnosis was made only in one patient. All underwent surgery, three survived and one died postoperatively from multiorgan failure. 相似文献