全文获取类型
收费全文 | 12384篇 |
免费 | 990篇 |
国内免费 | 355篇 |
专业分类
耳鼻咽喉 | 195篇 |
儿科学 | 639篇 |
妇产科学 | 272篇 |
基础医学 | 1204篇 |
口腔科学 | 260篇 |
临床医学 | 1030篇 |
内科学 | 1075篇 |
皮肤病学 | 202篇 |
神经病学 | 634篇 |
特种医学 | 940篇 |
外国民族医学 | 4篇 |
外科学 | 1860篇 |
综合类 | 1331篇 |
现状与发展 | 3篇 |
预防医学 | 288篇 |
眼科学 | 154篇 |
药学 | 554篇 |
11篇 | |
中国医学 | 93篇 |
肿瘤学 | 2980篇 |
出版年
2024年 | 30篇 |
2023年 | 207篇 |
2022年 | 401篇 |
2021年 | 485篇 |
2020年 | 452篇 |
2019年 | 385篇 |
2018年 | 349篇 |
2017年 | 358篇 |
2016年 | 441篇 |
2015年 | 458篇 |
2014年 | 766篇 |
2013年 | 848篇 |
2012年 | 672篇 |
2011年 | 650篇 |
2010年 | 548篇 |
2009年 | 517篇 |
2008年 | 596篇 |
2007年 | 563篇 |
2006年 | 523篇 |
2005年 | 454篇 |
2004年 | 391篇 |
2003年 | 291篇 |
2002年 | 253篇 |
2001年 | 236篇 |
2000年 | 206篇 |
1999年 | 176篇 |
1998年 | 221篇 |
1997年 | 185篇 |
1996年 | 188篇 |
1995年 | 167篇 |
1994年 | 189篇 |
1993年 | 122篇 |
1992年 | 124篇 |
1991年 | 137篇 |
1990年 | 118篇 |
1989年 | 102篇 |
1988年 | 99篇 |
1987年 | 77篇 |
1986年 | 87篇 |
1985年 | 101篇 |
1984年 | 88篇 |
1983年 | 52篇 |
1982年 | 73篇 |
1981年 | 86篇 |
1980年 | 68篇 |
1979年 | 58篇 |
1978年 | 42篇 |
1977年 | 39篇 |
1976年 | 30篇 |
1975年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Phoebe Hammer Kevin White Stephanie Mengden Vessy Korcheva Philipp W. Raess 《Journal of cutaneous pathology》2019,46(5):343-346
Cutaneous leiomyomas are rare benign smooth‐muscle tumors. These lesions are distinguished based on their cell of origin and are subclassified as pilar leiomyoma, angioleiomyoma, and genital‐type leiomyoma. Nipple leiomyoma is the least common genital‐type leiomyoma, arising from the dartoic muscle cell of the nipple. Histologic examination of the lesion is necessary for definitive diagnosis, and these uncommon tumors can pose a diagnostic challenge. We describe herein a series of six nipple leiomyomas with a spectrum of histologic appearances. 相似文献
2.
《Radiologia》2022,64(3):256-265
Breast cancer is the second most common cancer in Peruvian women. Due to limitations in national breast cancer screening programs, especially in rural areas, more than 50% of cases of breast cancer in Peru are diagnosed in advanced stages. In collaboration with a local clinic registered as a nongovernmental organization (CerviCusco), RAD-AID International aims to create a sustainable diagnostic structure to improve breast cancer screening in Cuzco. With the support of local, national, and international partners that have collaborated in analyzing radiological resources, raising awareness in the population, acquiring equipment, training clinical staff, and building referral networks, our teams of radiologists, included in the RAD-AID team, have participated in training CerviCusco staff in breast ultrasound, thus enabling additional training for radiology residents through a regulated international collaboration. 相似文献
3.
《Journal of the American College of Surgeons》2020,230(4):363-370
- Download : Download high-res image (207KB)
- Download : Download full-size image
4.
目的:探讨彩色多普勒超声诊断卵巢肿瘤蒂扭转的临床意义。方法方便选取2012―2015年该院收治的58例疑似卵巢肿瘤蒂扭转患者作为观察目标,入选病例均应用彩色多普勒超声进行检查,并将检查结果同术后病理检查结果进行比较。结果58例患者中,术后病理证实卵巢肿瘤蒂扭转者51例,彩色多普勒超声共确诊49例,检查准确率为96.1%;囊壁增厚、腹腔或盆腔积液、可见混合型团块是卵巢肿瘤蒂扭转的主要彩超表现。结论卵巢肿瘤蒂扭转应用彩色多普勒超声诊断,可显著提高诊断准确率,具有积极的临床使用和推广价值。 相似文献
5.
Breast Elastography: How to Perform and Integrate Into a “Best-Practice” Patient Treatment Algorithm
Breast elastography has been available for more than 15 years but is not widely incorporated into clinical practice. Many publications report extremely high accuracy for various breast elastographic techniques. However, results in the literature are extremely variable. This variability is most likely due to variations in technique, a relatively steep learning curve, and variability in methods between vendors. This article describes our protocol for performing breast elastography using both strain elastography and shear wave elastography, which produces high sensitivity and specificity. Additionally, we will describe the most commonly known false-positive and false-negative lesions as well as how to detect them. 相似文献
6.
7.
《Cancer cell》2020,37(1):123-134.e5
- Download : Download high-res image (200KB)
- Download : Download full-size image
8.
9.
10.