全文获取类型
收费全文 | 3372篇 |
免费 | 243篇 |
国内免费 | 19篇 |
专业分类
耳鼻咽喉 | 50篇 |
儿科学 | 148篇 |
妇产科学 | 146篇 |
基础医学 | 384篇 |
口腔科学 | 94篇 |
临床医学 | 319篇 |
内科学 | 645篇 |
皮肤病学 | 88篇 |
神经病学 | 120篇 |
特种医学 | 229篇 |
外国民族医学 | 8篇 |
外科学 | 481篇 |
综合类 | 52篇 |
一般理论 | 1篇 |
预防医学 | 177篇 |
眼科学 | 78篇 |
药学 | 345篇 |
中国医学 | 12篇 |
肿瘤学 | 257篇 |
出版年
2024年 | 2篇 |
2023年 | 46篇 |
2022年 | 147篇 |
2021年 | 239篇 |
2020年 | 132篇 |
2019年 | 153篇 |
2018年 | 222篇 |
2017年 | 137篇 |
2016年 | 128篇 |
2015年 | 125篇 |
2014年 | 164篇 |
2013年 | 223篇 |
2012年 | 270篇 |
2011年 | 268篇 |
2010年 | 163篇 |
2009年 | 127篇 |
2008年 | 142篇 |
2007年 | 131篇 |
2006年 | 126篇 |
2005年 | 130篇 |
2004年 | 117篇 |
2003年 | 91篇 |
2002年 | 87篇 |
2001年 | 22篇 |
2000年 | 23篇 |
1999年 | 37篇 |
1998年 | 16篇 |
1997年 | 15篇 |
1996年 | 13篇 |
1995年 | 5篇 |
1994年 | 10篇 |
1993年 | 5篇 |
1992年 | 9篇 |
1991年 | 18篇 |
1990年 | 12篇 |
1989年 | 12篇 |
1988年 | 11篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1985年 | 5篇 |
1984年 | 6篇 |
1983年 | 6篇 |
1982年 | 3篇 |
1980年 | 2篇 |
1979年 | 4篇 |
1978年 | 2篇 |
1975年 | 5篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1971年 | 2篇 |
排序方式: 共有3634条查询结果,搜索用时 15 毫秒
51.
52.
Abd El-Hameed Abeer Mohamed Abuelsaad Abdelaziz S. A. Khalil Abdelwahab 《Metabolic brain disease》2021,36(7):2047-2058
Metabolic Brain Disease - Bee venom (BV) is applied in different traditional medicinal therapies and is used worldwide to prevent and treat many acute and chronic diseases. Epilepsy has various... 相似文献
53.
54.
55.
Mohammad Abd Alkhalik Basha Hossam M. Abdelrahman Maha Ibrahime Metwally Nader Ali Alayouty Nesreen Mohey Mohamed M.A. Zaitoun Hosam Nabil Almassry Hala Y. Yousef Ahmed A. El Sammak Sameh Abdelaziz Aly Hesham Youssef Algazzar Mohamed Abd El‐Aziz Mohamed Farag Walid Mosallam Waleed S. Abo Shanab Safaa A. Ibrahim Ekramy A. Mohamed Abd El Motaleb Mohamed Amira Hamed Mohamed Afifi Ola A. Harb Taghreed M. Azmy 《Journal of magnetic resonance imaging : JMRI》2021,53(1):292-304
56.
57.
Psychometric properties of the revised Malay version Medical Outcome Study Social Support Survey using confirmatory factor analysis among postpartum mothers 下载免费PDF全文
58.
Hamady Dieng Rahimah Binti Hassan Ahmad Abu Hassan Idris Abd Ghani Fatimah Bt Abang Tomomitsu Satho Fumio Miake Hamdan Ahmad Yuki Fukumitsu Nur Aida Hashim Wan Fatma Zuharah Nur Faeza Abu Kassim Abdul Hafiz Ab Majid Rekha Selvarajoo Cirilo Nolasco-Hipolito Olaide Olawunmi Ajibola Andrew Alek Tuen 《Acta tropica》2015
Even with continuous vector control, dengue is still a growing threat to public health in Southeast Asia. Main causes comprise difficulties in identifying productive breeding sites and inappropriate targeted chemical interventions. In this region, rural families keep live birds in backyards and dengue mosquitoes have been reported in containers in the cages. To focus on this particular breeding site, we examined the capacity of bird fecal matter (BFM) from the spotted dove, to support Aedes albopictus larval growth. The impact of BFM larval uptake on some adult fitness traits influencing vectorial capacity was also investigated. In serial bioassays involving a high and low larval density (HD and LD), BFM and larval standard food (LSF) affected differently larval development. At HD, development was longer in the BFM environment. There were no appreciable mortality differences between the two treatments, which resulted in similar pupation and adult emergence successes. BFM treatment produced a better gender balance. There were comparable levels of blood uptake and egg production in BFM and LSF females at LD; that was not the case for the HD one, which resulted in bigger adults. BFM and LSF females displayed equivalent lifespans; in males, this parameter was shorter in those derived from the BFM/LD treatment. Taken together these results suggest that bird defecations successfully support the development of Ae. albopictus. Due to their cryptic aspects, containers used to supply water to encaged birds may not have been targeted by chemical interventions. 相似文献
59.
60.
Ahmed Y. Gamal Radi M. Kumper Abd El Reheem R. Al Gendy 《Journal of periodontology》2013,84(7):924-933
Background: The main objective of the present study is to quantify doxycycline (DOX) release from β‐tricalcium phosphate (β‐TCP) after EDTA root surface treatment. Methods: Thirty systemically healthy patients with ≥1 paired contralateral interproximal intrabony defect ≥4 mm deep along with an interproximal probing depth ≥6 mm and clinical attachment level ≥4 mm were randomized into two groups. Group 1 (G1) consisted of sites treated with open flap debridement followed by placement of DOX blended with β‐TCP (DOX‐β‐TCP), whereas group 2 (G2) sites were treated with flap surgery followed by the placement of DOX blended with β‐TCP after EDTA etching of the exposed root surfaces (DOX‐β‐TCP + EDTA). Samples of gingival crevicular fluid (GCF) were obtained 1, 3, 7, 14, and 21 days after surgery. Quantitative measurements of DOX were taken with high‐performance liquid chromatography. Clinical evaluation and follow‐up for 6 months were performed. Results: At 21 days, the DOX‐β‐TCP + EDTA–treated group showed a 194.7 µg/mL value. The DOX‐β‐TCP + EDTA–treated group retained more DOX during the periods of 3, 7, 10, 14, and 21 days than the DOX‐β‐TCP–treated group. Six months after therapy, DOX‐β‐TCP + EDTA–treated sites showed more significant clinical improvements compared to DOX‐β‐TCP–treated sites (P ≤ 0.05). Conclusions: EDTA root surface etching enhances DOX availability in the GCF following its release from β‐TCP as a drug carrier. 相似文献