全文获取类型
收费全文 | 1602篇 |
免费 | 58篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 6篇 |
儿科学 | 27篇 |
妇产科学 | 7篇 |
基础医学 | 129篇 |
口腔科学 | 40篇 |
临床医学 | 116篇 |
内科学 | 362篇 |
皮肤病学 | 22篇 |
神经病学 | 92篇 |
特种医学 | 79篇 |
外科学 | 467篇 |
综合类 | 10篇 |
预防医学 | 50篇 |
眼科学 | 38篇 |
药学 | 103篇 |
肿瘤学 | 117篇 |
出版年
2023年 | 8篇 |
2022年 | 21篇 |
2021年 | 32篇 |
2020年 | 26篇 |
2019年 | 36篇 |
2018年 | 26篇 |
2017年 | 19篇 |
2016年 | 37篇 |
2015年 | 45篇 |
2014年 | 45篇 |
2013年 | 57篇 |
2012年 | 75篇 |
2011年 | 85篇 |
2010年 | 45篇 |
2009年 | 31篇 |
2008年 | 75篇 |
2007年 | 76篇 |
2006年 | 51篇 |
2005年 | 60篇 |
2004年 | 58篇 |
2003年 | 58篇 |
2002年 | 58篇 |
2001年 | 71篇 |
2000年 | 51篇 |
1999年 | 51篇 |
1998年 | 12篇 |
1997年 | 13篇 |
1996年 | 10篇 |
1995年 | 14篇 |
1994年 | 16篇 |
1993年 | 10篇 |
1992年 | 44篇 |
1991年 | 46篇 |
1990年 | 28篇 |
1989年 | 31篇 |
1988年 | 25篇 |
1987年 | 27篇 |
1986年 | 25篇 |
1985年 | 20篇 |
1984年 | 12篇 |
1983年 | 9篇 |
1982年 | 8篇 |
1979年 | 13篇 |
1974年 | 10篇 |
1971年 | 6篇 |
1970年 | 9篇 |
1969年 | 9篇 |
1968年 | 8篇 |
1967年 | 10篇 |
1966年 | 7篇 |
排序方式: 共有1665条查询结果,搜索用时 15 毫秒
11.
12.
13.
Takeshi Takahara Go Wakabayashi Hiroyuki Nitta Yasushi Hasegawa Hirokatsu Katagiri Daiki Takeda Kenji Makabe Akira Sasaki 《肝胆外科与营养》2015,4(6):398-405
Background
In a statement by the second International Consensus Conference for Laparoscopic Liver Resection (LLR), minor LLR was confirmed to be a standard surgical practice, as it has become adopted by an increasing proportion of surgeons. However, it is unclear whether this applies to the more complex group of patients suffering from cirrhosis. Therefore, the aim of this retrospective study was to compare the feasibility and safety of LLR for hepatocellular carcinoma (HCC) between non-liver cirrhosis (NLC) patients and liver cirrhosis (LC) patients at a single high-volume laparoscopy center.Methods
From the beginning of 2000 to the end of 2013, open liver resection (OLR) was performed in 99 HCC patients, and LLR was in 118. The HCC patients who underwent LLR were divided into NLC-LLR (n=60) and LC-LLR (n=58) groups, and we compare the short-term outcomes between them.Results
There was no significant difference in the incidence of blood loss and transfusion requirements between the NLC-LLR group and the LC-LLR group, although wedge resection was mainly performed in the LC-LLR group. There was no significant difference in the complication rate between the two groups, and the remarkable finding was that there was a significantly lower incidence of postoperative ascites in the LC-LLR group than in the NLC-LLR group.Conclusions
According to our experience, it appears that LLR for selected HCC patients with cirrhosis is a feasible and promising procedure that is associated with less blood loss and fewer postoperative complications, especially the incidence of postoperative ascites. Further investigations are clearly warranted. 相似文献14.
15.
Mase Kaori Saito Chie Usui Joichi Arimura Yoshihiro Nitta Kosaku Wada Takashi Makino Hirofumi Muso Eri Hirawa Nobuhito Kobayashi Masaki Yumura Wako Fujimoto Shouichi Nakagawa Naoki Ito Takafumi Yuzawa Yukio Matsuo Seiichi Yamagata Kunihiro 《Clinical and experimental nephrology》2022,26(11):1092-1099
Clinical and Experimental Nephrology - The life prognosis of elderly patients with myeloperoxidase–anti-neutrophil cytoplasmic antibodies-associated vasculitis (MPO-AAV) has been improved by... 相似文献
16.
17.
Uchiyama K Ino H Hayashi K Fujioka K Takabatake S Yokawa J Namura M Mizuno S Tatami R Kanaya H Nitta Y Michishita I Hirase H Ueda K Aoyama T Okeie K Haraki T Mori K Araki T Minamoto M Oiwake H Konno T Sakata K Kawashiri M Yamagishi M;Heart Research Group of Kanazawa 《The Journal of international medical research》2011,39(2):549-557
Percutaneous coronary intervention (PCI) using a drug-eluting stent (DES) leads to less re-stenosis than PCI using a bare metal stent (BMS), however there is still controversy whether use of a DES for severe coronary disease leads to an acceptable outcome in patients with diabetes mellitus (DM). In this study 8159 lesions were treated in 6739 patients (mean age 68.9 years) with coronary artery disease. Use of a DES significantly decreased the re-stenosis rate compared with BMS in both DM (9.6% versus 21.3%) and non-DM (9.5% versus 17.1%) patients. The re-stenosis rate was significantly higher in DM than in non-DM patients in the BMS group but not in the DES group. There was no statistically significant difference in event-free survival after stenting of patients with left main coronary artery (LMCA) disease between the BMS and DES groups. It was concluded that, compared with BMS, DES reduced re-stenosis in patients with DM, however, we advise careful treatment after using DES for severe coronary disease, including LMCA lesions, in patients with DM. 相似文献
18.
Masahiro Nitta Taishiro Kishimoto Norbert Müller Mark Weiser Michael Davidson John M. Kane Christoph U. Correll 《Schizophrenia bulletin》2013,39(6):1230-1241
Objective: To meta-analytically assess the efficacy and tolerability of nonsteroidal anti-inflammatory drugs (NSAIDs) vs placebo in schizophrenia. Method: Searching PubMed, PsycINFO, ISI Web of Science, and the US National Institute of Mental Health clinical trials registry from database inception to December 31, 2012, we conducted a systematic review/meta-analysis of randomized placebo-controlled studies assessing the efficacy of adjunctive NSAIDs. Primary outcome was the change in Positive and Negative Syndrome Scale (PANSS) total score. Secondary outcomes included change in PANSS positive and negative subscores, all-cause discontinuation, and tolerability outcomes. Random effects, pooled, standardized mean changes (Hedges’ g) and risk ratios were calculated. Results: Across 8 studies, including 3 unpublished reports (n = 774), the mean effect size for PANSS total score was −0.236 (95% CI: −0.484 to 0.012, P = .063, I2 = 60.6%), showing only trend-level superiority for NSAIDs over placebo. The mean effect sizes for the PANSS positive and negative scores were −0.189 (95% CI: −0.373 to −0.005, P = .044) and −0.026 (95% CI: −0.169 to 0.117, P = .72), respectively. The relative risk for all-cause discontinuation was 1.13 (95% CI: 0.794 to 1.599, P = .503). Significant superiority of NSAIDs over placebo regarding PANSS total scores was moderated by aspirin treatment (N = 2, P = .017), inpatient status (N = 4, P = .029), first-episode status (N = 2, P = .048), and (in meta-regression analyses) lower PANSS negative subscores (N = 6, P = .026). Interpretation: These results indicate that adjunctive NSAIDs for schizophrenia may not benefit patients treated with first-line antipsychotics judged by PANSS total score change. NSAIDs may have benefits for positive symptoms, but the effect was minimal/small. However, due to a limited database, further controlled studies are needed, especially in first-episode patients.Key words: schizophrenia, inflammation, treatment resistance, augmentation, concomitant, nonsteroidal anti-inflammatory 相似文献
19.
Endo E Nitta N Inayoshi M Saito R Takemura K Minegishi H Kubo S Kondo M 《Journal of advanced nursing》2000,32(3):603-610
Pattern recognition as a caring partnership in families with cancer The purpose of this study was to address the process of a caring partnership by elaborating pattern recognition as nursing intervention with families with cancer. It is based on Newman's theory of health as expanding consciousness within the unitary-transformative paradigm and is an extension of a previous study of Japanese women with ovarian cancer. A hermeneutic, dialectic method was used to engage 10 Japanese families in which the wife-mothers were hospitalized because of cancer diagnosis. The family included at least the woman with cancer and her primary caregiver. Each of four nurse-researchers entered into partnership with a different family and conducted three interviews with each family. The participants were asked to describe the meaningful persons and events in their family history. The family's story was transmuted into a diagram of sequential patterns of interactional configurations and shared with the family at the second meeting. Evidence of pattern recognition and insight into the meaning of the family pattern were identified further in the remaining meetings. The data revealed five dimensions of a transformative process. Most families found meaning in their patterns and made a shift from separated individuals within the family to trustful caring relationships. One-third of them went through this process within two interviews. The families showed increasing openness, connectedness and trustfulness in caring relationships. In partnership with the family, each nurse-researcher grasped the pattern of the family as a whole and experienced the meaning of caring. Pattern recognition as nursing intervention was a meaning-making transforming process in the family-nurse partnership. 相似文献
20.