全文获取类型
收费全文 | 21072篇 |
免费 | 2083篇 |
国内免费 | 371篇 |
专业分类
耳鼻咽喉 | 118篇 |
儿科学 | 451篇 |
妇产科学 | 533篇 |
基础医学 | 1201篇 |
口腔科学 | 943篇 |
临床医学 | 2884篇 |
内科学 | 3368篇 |
皮肤病学 | 403篇 |
神经病学 | 1401篇 |
特种医学 | 253篇 |
外国民族医学 | 3篇 |
外科学 | 2019篇 |
综合类 | 1745篇 |
一般理论 | 3篇 |
预防医学 | 1943篇 |
眼科学 | 186篇 |
药学 | 3026篇 |
5篇 | |
中国医学 | 1591篇 |
肿瘤学 | 1450篇 |
出版年
2024年 | 9篇 |
2023年 | 598篇 |
2022年 | 627篇 |
2021年 | 1092篇 |
2020年 | 1097篇 |
2019年 | 1084篇 |
2018年 | 1053篇 |
2017年 | 1006篇 |
2016年 | 833篇 |
2015年 | 814篇 |
2014年 | 1639篇 |
2013年 | 2337篇 |
2012年 | 1198篇 |
2011年 | 1174篇 |
2010年 | 952篇 |
2009年 | 930篇 |
2008年 | 987篇 |
2007年 | 921篇 |
2006年 | 846篇 |
2005年 | 701篇 |
2004年 | 607篇 |
2003年 | 485篇 |
2002年 | 423篇 |
2001年 | 304篇 |
2000年 | 245篇 |
1999年 | 210篇 |
1998年 | 153篇 |
1997年 | 172篇 |
1996年 | 121篇 |
1995年 | 102篇 |
1994年 | 115篇 |
1993年 | 80篇 |
1992年 | 75篇 |
1991年 | 64篇 |
1990年 | 59篇 |
1989年 | 82篇 |
1988年 | 56篇 |
1987年 | 47篇 |
1986年 | 24篇 |
1985年 | 39篇 |
1984年 | 33篇 |
1983年 | 26篇 |
1982年 | 18篇 |
1981年 | 16篇 |
1980年 | 12篇 |
1979年 | 18篇 |
1978年 | 10篇 |
1977年 | 7篇 |
1975年 | 6篇 |
1973年 | 7篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
《Drug discovery today》2022,27(1):82-101
WNT/β-catenin signaling orchestrates various physiological processes, including embryonic development, growth, tissue homeostasis, and regeneration. Abnormal WNT/β-catenin signaling is associated with various cancers and its inhibition has shown effective antitumor responses. In this review, we discuss the pathway, potential targets for the development of WNT/β-catenin inhibitors, available inhibitors, and their specific molecular interactions with the target proteins. We also discuss inhibitors that are in clinical trials and describe potential new avenues for therapeutically targeting the WNT/β-catenin pathway. Furthermore, we introduce emerging strategies, including artificial intelligence (AI)-assisted tools and technology-based actionable approaches, to translate WNT/β-catenin inhibitors to the clinic for cancer therapy. 相似文献
3.
《Research in social & administrative pharmacy》2022,18(3):2367-2391
ObjectivesSeveral implementation strategies can reduce potentially inappropriate medication (PIM) prescribing. Although use of PIMs has declined in recent years, it remains prevalent. Various strategies exist to improve the appropriateness of medication use. However, little is known about the processes of these different implementation strategies. This scoping review aims to investigate how the process evaluation of implementation strategies for reducing PIM prescribing in the older population has been studied.MethodsWe searched for process evaluations of implementation strategies for reducing PIM prescribing in PUBMED, SCOPUS and Web of Science published between January 2000 and November 2019 in English. We applied the following inclusion criteria: patients aged ≥65 years, validated PIM criteria, and implementation process evaluated. The review focuses on decision support for health care professionals. We described the findings of the process evaluations, and compared the authors’ concepts of process evaluation of the included publications to those of Proctor et al.( 2010).ResultOf 9131 publications screened, 29 met our inclusion criteria. Different process evaluation conceptualizations were identified. Most process evaluations took place in the initial stages of the process (acceptability, adoption, appropriateness, and feasibility) and sustainability and implementation costs were seldom evaluated. None of the included publications evaluated fidelity.Multifaceted interventions were the most studied implementation strategies. Medication review was more common in acceptability evaluations, multidisciplinary interventions in adoption evaluations, and computerized systems and educational interventions in feasibility evaluations. Process evaluations were studied from the health care professionals’ viewpoint in most of the included publications, but the management viewpoint was missing.DiscussionThe conceptualization of process evaluation in the field of PIM prescribing is indeterminate. There is also a current gap in the knowledge of sustainability and implementation costs. Clarifying the conceptualization of implementation process evaluation is essential in order to effectively translate research knowledge into practice. 相似文献
4.
5.
6.
伴随着儿童近视发生率的上升和低龄化趋势,近视已成为亟需解决的全球公共卫生问题。控制近视发生发展的有效措施包括双焦眼镜、多焦眼镜、角膜塑形镜和药物等。近年来,阿托品作为控制近视发展的有效药物得到广泛关注。由于低浓度阿托品可以有效控制近视屈光度和眼轴增长,且畏光、视近模糊等不良反应轻,故低浓度阿托品已成为儿童近视防控的研究重点。现就低浓度阿托品在儿童近视控制中的研究进展进行综述。 相似文献
7.
Efficacy of Curcumin in Combination with Intralesional Dexamethasone with Hyaluronidase in the Treatment of Oral Submucous Fibrosis: A Randomized Controlled Trial 下载免费PDF全文
Sagar AdhikariJyotsna RimalIccha Kumar MaharjanAshish Shrestha 《Asian Pacific journal of cancer prevention》2022,23(9):3125-3132
Objective: The objective of this study was to determine the efficacy of curcumin in combination with intralesional dexamethasone with hyaluronidase in the treatment of oral submucous fibrosis (OSF). Methods: This randomized, double blind, parallel design, clinical trial was conducted at B.P. Koirala Institute of Health Sciences, Nepal. Thirty-four patients with clinically diagnosed OSF were randomized into two groups (17 participants in each) with baseline treatment of intralesional dexamethasone with hyaluronidase for 6 weeks for the both. Curcumin (2gm/day) was provided to Group A (Test) and Group B (Control) received placebo. Interincisal mouth opening, tongue protrusion, cheek flexibility and visual analogue scale (VAS) scoring of burning sensation of oral mucosa was recorded at baseline, 6, 8 and 12 weeks follow-up and independent t-test was used to compare the improvements in two groups. Results: On comparing the 6 weeks and baseline values, in Group A and B the mean difference in mouth opening was 8.82±1.33 mm and 5.53±1.17 mm respectively (p<0.001), in cheek flexibility was 2.94±1.02 mm and 1.94±1.24 mm respectively (p=0.02) and in tongue protrusion was 6.23±1.48 and 3.65±1.37 mm respectively (p<0.001). The findings were consistent in the 8 weeks follow-up. In 12 weeks follow-up, on comparing with the baseline values, in Group A and B, the mean difference in mouth opening was 8.71±1.16 mm and 5.35±1.22 mm respectively (<0.001), ), in cheek flexibility was 2.81±1.01 mm and 1.76±1.35 mm respectively (p=0.02) and in tongue protrusion was 6.06±1.48 and 3.35±1.50 mm respectively (p<0.001). Both the arms showed 100% improvement in burning sensation in 6, 8 and 12 weeks follow-up. Conclusion: Curcumin in combination with intralesional dexamethasone with hyaluronidase is efficacious in the treatment of OSF. 相似文献
8.
Zahraa Al-Hilli Anna Weiss Ava Armani Judy C Boughey Sarah L. Blair 《Journal of surgical oncology》2022,125(1):7-16
Surgical trials in breast cancer have catalyzed contemporary trial design for solid organ cancers and are a prime example of surgeons taking the lead in clinical trial design. Surgeons have lead trials that have improved patient outcomes and quality of life without sacrificing oncologic safety. We have evolved from radical mastectomy to breast conservation and sentinel node biopsy. Contemporary trial design in breast cancer now focus on personalizing care based on tumor genomics 相似文献
9.
Backgroundand purpose: Although several studies have reported that thread embedding acupuncture (TEA) is effective for lumbar herniated intervertebral disc (LHIVD), the evidence remains limited because previous studies had a high risk of bias. This study aimed to investigate the efficacy and safety of TEA for LHIVD through a rigorously designed trial.Materials and methodsThis was a randomized, patient-assessor-blinded, sham-controlled trial. Participants were screened according to eligibility criteria, and 70 patients with LHIVD were randomly allocated to the TEA and sham TEA (STEA) groups in a 1:1 ratio. Both groups received TEA or STEA treatment at 23 acupoints once per week for eight weeks. Changes in low back pain, radiating pain, Oswestry disability index, Roland–Morris disability questionnaire, EuroQol 5–Dimensions 5–Levels, and global perceived effect were measured at baseline and at 4, 8, 12, and 16 weeks after screening and compared between the two groups.ResultsTEA showed no significant difference in all outcomes compared to STEA immediately after eight weeks of treatment. After an additional eight weeks of follow-up, TEA showed a more significant effect on the low back pain than STEA (p < 0.05) and showed a better tendency in maintaining or enhancing the improvement of radiating pain, function, and quality of life even after the end of treatment. No serious adverse events were observed.ConclusionTEA is effective in improving low back pain in patients with LHIVD and may help improve function and quality of life, especially in the long term. 相似文献