全文获取类型
收费全文 | 50322篇 |
免费 | 7286篇 |
国内免费 | 1328篇 |
专业分类
耳鼻咽喉 | 193篇 |
儿科学 | 993篇 |
妇产科学 | 660篇 |
基础医学 | 2621篇 |
口腔科学 | 2356篇 |
临床医学 | 7785篇 |
内科学 | 5297篇 |
皮肤病学 | 782篇 |
神经病学 | 2400篇 |
特种医学 | 795篇 |
外国民族医学 | 9篇 |
外科学 | 4992篇 |
综合类 | 9301篇 |
现状与发展 | 6篇 |
一般理论 | 26篇 |
预防医学 | 4570篇 |
眼科学 | 756篇 |
药学 | 6648篇 |
469篇 | |
中国医学 | 5121篇 |
肿瘤学 | 3156篇 |
出版年
2024年 | 80篇 |
2023年 | 1136篇 |
2022年 | 1420篇 |
2021年 | 2955篇 |
2020年 | 3487篇 |
2019年 | 2534篇 |
2018年 | 2322篇 |
2017年 | 2682篇 |
2016年 | 2643篇 |
2015年 | 2258篇 |
2014年 | 3886篇 |
2013年 | 4253篇 |
2012年 | 3410篇 |
2011年 | 3509篇 |
2010年 | 2730篇 |
2009年 | 2428篇 |
2008年 | 2329篇 |
2007年 | 2395篇 |
2006年 | 2026篇 |
2005年 | 1680篇 |
2004年 | 1427篇 |
2003年 | 1286篇 |
2002年 | 1019篇 |
2001年 | 811篇 |
2000年 | 631篇 |
1999年 | 472篇 |
1998年 | 379篇 |
1997年 | 355篇 |
1996年 | 302篇 |
1995年 | 249篇 |
1994年 | 253篇 |
1993年 | 172篇 |
1992年 | 205篇 |
1991年 | 165篇 |
1990年 | 141篇 |
1989年 | 143篇 |
1988年 | 130篇 |
1987年 | 114篇 |
1986年 | 77篇 |
1985年 | 95篇 |
1984年 | 75篇 |
1983年 | 40篇 |
1982年 | 47篇 |
1981年 | 38篇 |
1980年 | 34篇 |
1979年 | 23篇 |
1978年 | 12篇 |
1977年 | 16篇 |
1976年 | 17篇 |
1975年 | 19篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
102.
《Patient education and counseling》2022,105(7):2256-2263
ObjectiveTo examine the impact of an integrative medicine (IM) course on self-perceived IM-related communication and research skills.MethodsA 3-day mandatory "hybrid" (online and in-person) IM course was held within COVID-19 restrictions for 161 pre-clerkship medical students, with workshops facilitated by mentor healthcare professionals (IM and non-IM) and student-directed tasks. Self-perceived levels of 6 IM-related skills were scored (from 1 to 5) for history-taking; communicating with patients with "alternative" health-beliefs; referral to IM consultations; assessing risks/benefits; and working with non-medical IM practitioners.Results137 students (85.1%) completed pre-/post-course questionnaires, with overall scores improving from pre-course (1.98 ± 0.92) to post-course (3.31 ± 0.63; p < 0.0001), for the entire group and student subgroups (with vs. without prior IM experience). Multivariate analysis found no association between age, gender, primary language or prior experience with IM and improvement in skill scores.ConclusionsThe IM course increased self-perceived skill levels, reflecting the course curriculum and workshops. Further research needs to explore the application of these skills during clinical training.Practice implicationsTeaching medical students about IM in a course comprising communication and research skills was shown to be feasible and effective. The application of IM-related skills needs to be evaluated during the clinical clerkship. 相似文献
103.
104.
105.
《Transfusion and apheresis science》2022,61(4):103487
When the COVID-19 pandemic hit, blood transfusion services worldwide started collection of convalescent plasma as early as possible, as exemplified by the response in Norway. There were challenges related to donor selection, donor safety, testing for relevant antibodies and indications for and dosing of the convalescent plasma. As more knowledge became available, the product quality was more standardised. Multiple case reports, observational studies and some randomized studies were published during the pandemic, as well as laboratory studies reporting different approaches to antibody testing. The results were conflicting and the importance of convalescent plasma was disputed.Even though there has been strong international collaboration with involvement of many key organisations, we may better prepare for the next pandemic. An even stronger, more formalised collaboration between these organisations could provide more clear evidence of the importance of convalescent plasma, based on the principles of passive immunisation. 相似文献
106.
《Journal of cranio-maxillo-facial surgery》2022,50(5):462-467
Among healthcare workers, oral and maxillofacial surgeons are some of the most exposed to coronavirus disease (COVID-19). The aim of this retrospective study was to develop suggestions for continuing the work of oral and maxillofacial surgeons using a safe protocol for elective and urgent aerosol-generating procedures that could prevent the onset of new clusters.Based on the results obtained and a guidelines review of those Asian countries that had promptly managed the current pandemic, the following safety protocol was developed: 相似文献
107.
目的 探讨老年脓毒症患者临床特征及影响预后的危险因素。方法 选取2020年7月-2021年9月某三级甲等医院收治的老年脓毒症患者为研究对象,记录患者的临床及实验室资料,根据患者28天预后情况分为存活组和死亡组,比较各临床指标在两组间的差异,应用二元logistic回归分析法分析影响老年脓毒症患者预后的独立危险因素,进一步绘制受试者工作特征(ROC)曲线,评估不同指标预测患者预后的价值。结果 共纳入121例患者,其中74例为脓毒症,47例为脓毒性休克。存活组92例,死亡组29例。与存活组相比,死亡组患者发生脓毒性休克、合并症个数 ≥ 2的比例均较高(P<0.05);序贯器官衰竭评估(SOFA)评分和急性生理与慢性健康状况评估(APACHEⅡ)评分也较高,白细胞介素6(IL-6)、胱抑素C(Cys-C)、降钙素原(PCT)、凝血酶原时间(PT)和D -二聚体(D -D)表达水平均增高(均P<0.05),而淋巴细胞绝对计数(ALC)和清蛋白(ALB)表达水平降低(均P<0.01)。二元logistic回归分析显示脓毒性休克、SOFA评分、D -D及Cys-C表达水平是影响老年脓毒症患者28天预后的独立危险因素。ROC曲线分析显示SOFA评分(AUC=0.758)、D -D(AUC=0.774)、Cys-C(AUC=0.650)预测患者的预后均有一定的价值(均P<0.01),与单个指标相比,三个指标的联合检测显示出更高的预测价值(AUC=0.882)。结论 发生脓毒性休克、SOFA评分增高、D -D及Cys-C表达水平增加是导致老年脓毒症患者病死率上升的独立危险因素,SOFA评分、D -D和Cys-C的联合检测可进一步提高脓毒症患者预后的预测价值,为临床治疗和预后评估提供参考依据。 相似文献
108.
Elena Varotto Pietro Maria Militello Erica Platania Paolo Sferrazza Francesco Maria Galassi 《Clinical anatomy (New York, N.Y.)》2021,34(1):19-23
In this article, we report a case of isolated podal osteochondroma from the prehistoric Hypogeum of Calaforno (Giarratana, Ragusa, Sicily). Although the phalanx exhibiting the benign tumoral mass comes from a context featuring several commingled remains, the very good state of preservation of this bone allowed us to perform a comprehensive study of the neoplasm by applying a multidisciplinary approach encompassing archeology, morphology, stereomicroscopy, and radiology. The results from this very ancient specimen have been assessed in the light of the available paleopathological literature and clinical implications currently encountered in modern patients. 相似文献
109.
110.
《The Knee》2021
BackgroundOur study purpose was to determine if primary osteochondral allograft (OCA) transplant surgeries for large (>4 cm2) single-surface, multisurface, or bipolar articular defects in the knee would be associated with significant gains in knee range of motion (ROM) at ≥1-year follow-up when compared to preoperative ROM.MethodsPatients were prospectively enrolled into a dedicated registry to follow outcomes after OCA with or without meniscal allograft transplantation using Missouri Osteochondral Preservation System (MOPS)-preserved allografts. Patients were included if they had surgery to repair at least one osteochondral defect, and when at least one year of ROM data and Visual Analog Scale pain scores were available. Data on complications and reoperations, patient-reported outcome measures, compliance with rehabilitation, revisions, or failures were recorded.ResultsFor patients who met inclusion criteria after OCA surgery (n = 75), overall ROM increased from 127.8 ± 17 degrees preoperatively, to 130.5 ± 14 post-operatively. Non-compliance was the largest factor contributing to postoperative ROM lag or loss. Knee manipulation/lysis of adhesion rates were comparable to rates in TKA and ACL procedures (2.96–4.54% for ACL/TKA, 4% for OCAs in the present study).ConclusionResults suggest that OCA with or without meniscal allograft transplantation in the knee using high-viability grafts, advanced graft cutting and implantation techniques, and procedure-specific rehabilitation protocols can result in consistently successful outcomes in a high percentage (92%) of selected patients. Most patients (95%) can expect to regain, or improve, to “full” functional range of motion (130°) at 1 year after surgery such that highly functional activities can be performed.Level of Evidence: Cohort study; Level III. 相似文献