全文获取类型
收费全文 | 231290篇 |
免费 | 29862篇 |
国内免费 | 7609篇 |
专业分类
耳鼻咽喉 | 1939篇 |
儿科学 | 2737篇 |
妇产科学 | 5460篇 |
基础医学 | 16981篇 |
口腔科学 | 2396篇 |
临床医学 | 20252篇 |
内科学 | 22828篇 |
皮肤病学 | 1490篇 |
神经病学 | 2279篇 |
特种医学 | 6885篇 |
外国民族医学 | 255篇 |
外科学 | 33319篇 |
综合类 | 29674篇 |
现状与发展 | 40篇 |
一般理论 | 3篇 |
预防医学 | 12506篇 |
眼科学 | 231篇 |
药学 | 16907篇 |
179篇 | |
中国医学 | 5790篇 |
肿瘤学 | 86610篇 |
出版年
2024年 | 778篇 |
2023年 | 4843篇 |
2022年 | 9440篇 |
2021年 | 12386篇 |
2020年 | 11568篇 |
2019年 | 10470篇 |
2018年 | 10034篇 |
2017年 | 10389篇 |
2016年 | 11109篇 |
2015年 | 12792篇 |
2014年 | 18766篇 |
2013年 | 18605篇 |
2012年 | 15003篇 |
2011年 | 15209篇 |
2010年 | 11179篇 |
2009年 | 11319篇 |
2008年 | 11568篇 |
2007年 | 10856篇 |
2006年 | 9602篇 |
2005年 | 7882篇 |
2004年 | 6577篇 |
2003年 | 5438篇 |
2002年 | 4617篇 |
2001年 | 4228篇 |
2000年 | 3480篇 |
1999年 | 2988篇 |
1998年 | 2516篇 |
1997年 | 2215篇 |
1996年 | 1789篇 |
1995年 | 1679篇 |
1994年 | 1374篇 |
1993年 | 1100篇 |
1992年 | 980篇 |
1991年 | 871篇 |
1990年 | 671篇 |
1989年 | 621篇 |
1988年 | 523篇 |
1987年 | 454篇 |
1986年 | 386篇 |
1985年 | 488篇 |
1984年 | 390篇 |
1983年 | 274篇 |
1982年 | 300篇 |
1981年 | 260篇 |
1980年 | 216篇 |
1979年 | 143篇 |
1978年 | 109篇 |
1977年 | 84篇 |
1976年 | 74篇 |
1975年 | 40篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
黄传贵 《世界今日医学杂志》2007,8(3):131-132
目的 总结复方金荞麦颗粒治疗肺癌的疗效。方法 对1000例各种类型的肺癌患者采用复方金荞麦颗粒5g,3次·d^-1 口服,同时辅以中药汤剂治疗,3mo为1疗程,病情稳定后逐渐减量维持。结果本组1000例患者经3mo~15a以上治疗,基本治愈181例(18.1%),显效518例(51.8%),有效204例(20.4%),无效97例(9.7%),总有效率为90.3%。结论 复方金荞麦颗粒为抗肿瘤的纯中药制剂,具有明显抑制肿瘤细胞生长、增强免疫功能、提高患者生存质量等功效,尤其是对失去手术治疗机会、不能接受化疗和放疗的肺癌患者具有较好疗效。 相似文献
52.
While two prophylactic HPV vaccines have been proven notably efficacious in clinical trials, the effectiveness of these vaccines at the population level remains to be evaluated. To lay the foundation for understanding the strengths and limitations of different endpoints for future effectiveness research, we present a comprehensive review of HPV-related clinical outcomes, including: (i) HPV type-specific positivity and persistence, (ii) Pap diagnoses (ASC-US, LSIL, and HSIL), (iii) histologic cervical cancer precursor lesions (i.e., CIN1, CIN2, and CIN3), (iv) invasive cervical cancer (ICC), (v) anogenital warts, (vi) recurrent respiratory papillomatosis (RRP), and (vii) other HPV-associated cancers (vulvar, vaginal, anal, penile, and oropharyngeal). While research on the vaccines’ effects on these HPV clinical outcomes in the general population is presently limited, numerous large trials will soon be completed, making a priori discussion of these potential outcomes especially urgent. Furthermore, population level systems to track HPV-associated clinical outcomes may need to be developed for HPV vaccine effectiveness evaluation. 相似文献
53.
54.
Yutaka Saito Takahisa Matsuda Tsuyoshi Kikuchi Hisatomo Ikehara Toshio Uraoka 《Digestive endoscopy》2007,19(Z1):S34-S39
Endoscopic submucosal dissection (ESD) for colorectal cancer is not widely accepted because of its technical difficulty and the risk of perforation. In addition, the risk of peritonitis cannot be completely eliminated even if a perforation is closed successfully. Reported here are two cases of early colon cancer in which the patients sustained iatrogenic perforations of the ascending colon during conventional endoscopic mucosal resection and of the sigmoid colon during ESD, respectively, requiring abdominal decompression with an 18 G Medicut needle. Both of these perforations were successfully treated by endoscopic clipping. In conclusion, conservative medical management may be possible in patients who have undergone successful closure of colonic perforations using endoscopic clipping. In order to perform immediate endoscopic closure, abdominal decompression has been useful to decrease patient discomfort and colonic lumen collapse. Now, CO2 insufflation is being used effectively for the prevention of pneumoperitoneum. 相似文献
55.
G Titeca†§ F Poot†§ D Cassart‡ B Defays† D Pirard†§ M Comas† P Vereecken†¶†† V Verschaevec P Simon† M Heenen† 《Journal of the European Academy of Dermatology and Venereology》2007,21(6):771-776
BACKGROUND: Breast cancer is the most common cancer in women and therefore represents a major problem in public health. Data from patients' self-report questionnaires provide valuable information about the side-effects that patients may view as having a significantly detrimental impact on their quality of life (QOL) and yet are not always recognized as important by healthcare professionals. Cosmetology is a specific care for patients and there is actually no scientific evidence regarding effects on QOL for women with breast cancer. OBJECTIVE: The purpose of this study is to assess the impact of cosmetic care on QOL in breast cancer patients during chemotherapy and radiotherapy. METHODS: We developed a prospective, multicentre, randomized, controlled study including 27 patients. All the patients had to fill in a French-validated dermatologic specific quality-of-life questionnaire to compare the QOL of the two groups, the cosmetic group and the control group, at three different times of the adjuvant treatment. RESULTS: The results show a statistically significant difference between the cosmetic group and the control group in two areas of QOL: mood state and self-perception of the disease. CONCLUSION: This study emphasizes the interest of cosmetic care in breast cancer patients. However, further larger trials are needed to confirm this study. 相似文献
56.
W.-S. Ahn D.-J. Kim† G.-T. Chae‡ J.-M. Lee S.-M. Bae§ J.-I. Sin§ Y.-W. Kim§ S.-E. Namkoong & I. P. Lee 《International journal of gynecological cancer》2004,14(4):589-594
A mushroom extract, Agaricus blazei Murill Kyowa (ABMK), has been reported to possess antimutagenic and antitumor effects. Here, we investigate the beneficial effects of ABMK consumption on immunological status and qualities of life in cancer patients undergoing chemotherapy. One hundred cervical, ovarian, and endometrial cancer patients were treated either with carboplatin (300 mg / m(2)) plus VP16 (etoposide, 100 mg / m(2)) or with carboplatin (300 mg / m(2)) plus taxol (175 mg / m(2)) every 3 weeks for at least three cycles with or without oral consumption of ABMK. We observed that natural killer cell activity was significantly higher in ABMK-treated group (ANOVA, n = 39, P < 0.002) as compared with nontreated placebo group (n = 61). However, no significant difference in lymphokine-activated killer and monocyte activities was observed in a manner similar to the count of specific immune cell populations between ABMK-treated and nontreated groups. However, chemotherapy-associated side effects such as appetite, alopecia, emotional stability, and general weakness were all improved by ABMK treatment. Taken together, this suggests that ABMK treatment might be beneficial for gynecological cancer patients undergoing chemotherapy. 相似文献
57.
58.
59.
Aim: To examine the evidence of benefit in initiating immediate chemotherapy in patients with newly diagnosed asymptomatic metastatic incurable cancer, compared with delaying chemotherapy until symptomatic progression. Methods: Through an extensive review of published reports, we examined the biological, clinical, psychological and ethical background of the issue and reported on the available clinical trial evidence in a variety of tumor types. Results: Only a limited number of clinical trials have directly examined the role of immediate versus delayed chemotherapy in patients with incurable asymptomatic metastatic cancer. Small studies in mesothelioma, colorectal cancer, breast cancer, myeloma, and low‐grade lymphoma suggest no survival benefit for the immediate initiation of chemotherapy. However, there was no evidence in other tumor types. Conclusion: The appropriate timing of chemotherapy initiation in an asymptomatic patient with metastatic cancer remains a substantial question in oncology. Many factors are likely to impact on the decision. However, little if any evidence demonstrates a clear advantage in the immediate initiation of chemotherapy in this setting. 相似文献
60.
KAZUMI NOGUCHI JUN-ICHI TERANISHI HIROJI UEMURA NAOYA FUJIKAWA KAZUO SAITO TETSUO MURAI 《International journal of urology》2006,13(9):1259-1261
Antiandrogen withdrawal syndrome (AWS) is a well-established phenomenon in prostate cancer. However, responses to AWS are usually of limited duration, and a complete response (CR) is extremely rare. We present two patients who exhibited a chemical CR for more than 2 years after the discontinuation of steroidal antiandrogen chlormadinone acetate use. Whether patients who respond to antiandrogen withdrawal include a group of patients with a better prognosis remains uncertain. However, considering that the usual survival period of patients with hormone-resistant prostate cancer is approximately 12 months, both of the patients reported here, who are present in excellent physical condition, exhibiting an improved quality of life, and attending their hospital as outpatients, obviously acquired a prolonged survival because of AWS. 相似文献