全文获取类型
收费全文 | 3735篇 |
免费 | 216篇 |
国内免费 | 36篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 33篇 |
妇产科学 | 1125篇 |
基础医学 | 252篇 |
口腔科学 | 10篇 |
临床医学 | 373篇 |
内科学 | 87篇 |
皮肤病学 | 55篇 |
神经病学 | 16篇 |
特种医学 | 51篇 |
外科学 | 509篇 |
综合类 | 578篇 |
预防医学 | 330篇 |
眼科学 | 4篇 |
药学 | 350篇 |
4篇 | |
中国医学 | 87篇 |
肿瘤学 | 122篇 |
出版年
2024年 | 8篇 |
2023年 | 43篇 |
2022年 | 93篇 |
2021年 | 132篇 |
2020年 | 136篇 |
2019年 | 132篇 |
2018年 | 121篇 |
2017年 | 154篇 |
2016年 | 137篇 |
2015年 | 117篇 |
2014年 | 232篇 |
2013年 | 303篇 |
2012年 | 218篇 |
2011年 | 236篇 |
2010年 | 189篇 |
2009年 | 212篇 |
2008年 | 218篇 |
2007年 | 240篇 |
2006年 | 190篇 |
2005年 | 162篇 |
2004年 | 124篇 |
2003年 | 84篇 |
2002年 | 67篇 |
2001年 | 56篇 |
2000年 | 37篇 |
1999年 | 44篇 |
1998年 | 33篇 |
1997年 | 28篇 |
1996年 | 36篇 |
1995年 | 22篇 |
1994年 | 19篇 |
1993年 | 13篇 |
1992年 | 20篇 |
1991年 | 9篇 |
1990年 | 14篇 |
1989年 | 16篇 |
1988年 | 15篇 |
1987年 | 9篇 |
1986年 | 4篇 |
1985年 | 11篇 |
1984年 | 13篇 |
1983年 | 11篇 |
1982年 | 9篇 |
1981年 | 3篇 |
1980年 | 7篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 2篇 |
1974年 | 2篇 |
排序方式: 共有3987条查询结果,搜索用时 0 毫秒
91.
92.
Halima Al-tamimi Alia A. Al-Hadi Al-Hareth Al-Khater Issam Al-bozom Najla Al-sayed 《Archives of gynecology and obstetrics》2009,280(3):465-468
Abstract A case report and review of an extraskeletal neuroectodermal tumour of the vagina.
Background Ewing’s sarcoma (ES) and primitive neuroectodermal tumours (PNETs) account for approximately 6–10% of primary malignant bone
tumours and, following osteosarcoma, are the second most common group of bone sarcomas in children. Ewing’s sarcoma rarely
affects the genitourinary tract.
Case summary We report a rare case of extraskeletal Ewing’s sarcoma diagnosed in a 47-year-old Indian woman presenting with a simple cystic
lesion in the posterior wall of the vagina. The histopathology revealed a rare presentation of a primitive malignant extraskeletal
neuroectodermal tumour.
Conclusion As our PubMed review found only six previously reported cases of vaginal extraskeletal Ewing’s sarcoma. Presentation as vaginal
masses helped in early disease detection. 相似文献
93.
94.
Objective: To evaluate the characteristics and risk factors of puerperal hematoma.Materials and Methods: Data from the medical records of 2,776 women, who delivered vaginally between January 2008 and December 2017 in the authors’ hospital, were analyzed retrospectively.Results: Primigravida status was considered to be a significant risk factor. Among women with multigravida status, maternal age, instrumental delivery, and episiotomy were considered to be statistically significant risk factors. Regarding characteristics, hematoma occurred on the right side in 61.5% of cases, 53.8% were ≥50 mm in size, 61.5% were detected within 2 h of delivery, 46.2% were associated with severe pain, and 61.5% required surgical treatment.Conclusion: Primigravida status a risk factor for puerperal hematoma, and maternal age, instrumental delivery, and episiotomy were risk factors for puerperal hematoma in women with multigravida status. Puerperal hematomas occurred more frequently on the right side than the left reflected by the number of episiotomies performed on the right side. Approximately one-half of the hematomas were associated with severe pain, and many were detected within 2 h after delivery. Many hematomas, especially those associated with severe pain, required surgical removal. 相似文献
目的:探讨针对子宫肌瘤患者实施腹腔镜联合阴式手术的临床应用价值。方法:选取某院2017年4月~2018年10月期间收治的子宫肌瘤患者共计120例,根据数字表分组划分为对照组和观察组各60例,对照组采取阴式手术,观察组采取腹腔镜联合阴式手术治疗方法,分别对两组患者的手术时间、失血率以及子宫肌瘤数目进行统计对比,并对住院时间、复发率进行统计对比,探讨两种治疗方式的差异。结果:通过研究对比发现,观察组患者在手术时间、失血率以及子宫肌瘤数目等方面优于对照组,差异显著(P<0.05);对照组患者在住院时间、复发率等方面均高于对照组患者,差异同样显著(P<0.05)。结论:腹腔镜联合阴式手术针对子宫肌瘤治疗具有很好的临床应用效果,不但可以显著改善患者的生命质量,同时也可以降低并发症的发病率以及病症复发率,具有临床应用、推广的价值。 相似文献
96.
Qiu Ju Ng Rama Padma Namuduri Kwai Lam Yam Soo Kim Lim-Tan 《Singapore medical journal》2015,56(8):e134-e136
Vaginal cancer is rare worldwide and represents 2% of all gynaecological cancers in Singapore. Primary vaginal malignancies are rare and vaginal metastases constitute the majority of vaginal malignancies. Most of these metastases arise from the cervix, endometrium or ovary, although they can also metastasise from distant sites such as the colon, breast and pancreas. We report a rare case of vaginal metastasis in a patient with previous gastric and rectal adenocarcinomas. An 89-year-old woman with a history of gastric and rectal malignancy presented with postmenopausal bleeding. A 2-cm vaginal tumour at the introitus was discovered upon examination. This case demonstrates the importance of performing a gynaecological examination during follow-up for patients with a history of malignancy. The prognosis for vaginal metastasis is poor, as it is often associated with disseminated disease. Depending on the extent of the lesions, radiotherapy or surgery can be considered. 相似文献
97.
98.
Jared Nathanson Daniel T. Swarr Amihood Singer Mochi Liu Amy Chinn Wendy Jones Jane Hurst Nahla Khalek Elaine Zackai Anne Slavotinek 《American journal of medical genetics. Part A》2013,161(3):473-478
Loss of function mutations in FREM1 have been demonstrated in Manitoba‐oculo‐tricho‐anal (MOTA) syndrome and Bifid Nose Renal Agenesis and Anorectal malformations (BNAR) syndrome, but the wider phenotypic spectrum that is associated with FREM1 mutations remains to be defined. We screened three probands with phenotypic features of MOTA syndrome. In one severely affected infant who was diagnosed with MOTA syndrome because of bilateral eyelid colobomas, a bifid nasal tip, hydrometrocolpos and vaginal atresia, we found two nonsense mutations that likely result in complete loss of FREM1 function. This infant also had renal dysplasia, a finding more consistent with BNAR syndrome. Another male who was homozygous for a novel stop mutation had an extensive eyelid colobomas, corneopalpebral synechiae, and unilateral renal agenesis. A third male child diagnosed with MOTA syndrome because of corneopalpebral synechiae and eyelid colobomas had a homozygous splice site mutation in FREM1. These cases illustrate that disruption of the FREM1 gene can produce a spectrum of clinical manifestations encompassing the previously described MOTA and BNAR syndromes, and that features of both syndromes may be seen in the same individual. The phenotype of FREM1‐related disorders is thus more pleiotropic than for MOTA and BNAR syndrome alone and more closely resembles the widespread clinical involvement seen with Fraser syndrome. Moreover, our first case demonstrates that vaginal atresia may be a feature of FREM1‐related disorders. © 2013 Wiley Periodicals, Inc. 相似文献
99.
100.