全文获取类型
收费全文 | 10271篇 |
免费 | 285篇 |
国内免费 | 63篇 |
专业分类
耳鼻咽喉 | 77篇 |
儿科学 | 226篇 |
妇产科学 | 57篇 |
基础医学 | 198篇 |
口腔科学 | 46篇 |
临床医学 | 1073篇 |
内科学 | 244篇 |
皮肤病学 | 26篇 |
神经病学 | 173篇 |
特种医学 | 194篇 |
外科学 | 3953篇 |
综合类 | 2160篇 |
预防医学 | 688篇 |
眼科学 | 107篇 |
药学 | 984篇 |
14篇 | |
中国医学 | 137篇 |
肿瘤学 | 262篇 |
出版年
2024年 | 3篇 |
2023年 | 74篇 |
2022年 | 220篇 |
2021年 | 180篇 |
2020年 | 246篇 |
2019年 | 191篇 |
2018年 | 206篇 |
2017年 | 141篇 |
2016年 | 209篇 |
2015年 | 247篇 |
2014年 | 780篇 |
2013年 | 655篇 |
2012年 | 714篇 |
2011年 | 701篇 |
2010年 | 711篇 |
2009年 | 654篇 |
2008年 | 621篇 |
2007年 | 678篇 |
2006年 | 572篇 |
2005年 | 462篇 |
2004年 | 424篇 |
2003年 | 347篇 |
2002年 | 322篇 |
2001年 | 254篇 |
2000年 | 195篇 |
1999年 | 178篇 |
1998年 | 136篇 |
1997年 | 103篇 |
1996年 | 70篇 |
1995年 | 54篇 |
1994年 | 53篇 |
1993年 | 40篇 |
1992年 | 14篇 |
1991年 | 14篇 |
1990年 | 15篇 |
1989年 | 11篇 |
1988年 | 11篇 |
1987年 | 17篇 |
1986年 | 12篇 |
1985年 | 21篇 |
1984年 | 16篇 |
1982年 | 5篇 |
1981年 | 10篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1976年 | 4篇 |
1975年 | 3篇 |
1972年 | 2篇 |
1969年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
Ureteral hernia is uncommon and usually misdiagnosed. From an anatomic point of view, we can distinguish between two uretero-inguinal
hernias: intraperitoneal and extraperitoneal. Ureter inguinal hernias are nearly always indirect. This kind of hernia can
include the ureter alone or, frequently, other abdominal sliding organs within the hernia sac (bladder, bowel tracts, etc.).
Kidneys and urinary tracts present normal anatomic conformation, although renal ptosis may be found. As of July 2004, 139
cases of ureteral hernia had been described in the literature. Here we report a case of inguino-scrotal herniation of double
district ureter and review the current literature to analyze the main clinical characteristics of this pathology and to establish
pitfalls. 相似文献
32.
33.
Surgeon perspectives on options for ventral abdominal wall hernia repair: results of a postal questionnaire 总被引:3,自引:0,他引:3
Background: Ventral abdominal wall hernias are a common cause of morbidity and mortality. Opinion varies as to appropriate management.
A recent consensus meeting on incisional hernia identified the need to standardise repair. On this background, a survey of
current practice was performed. Method: A questionnaire was sent to 101 practicing general surgeons within the West of Scotland. Incisional, epigastric and para-umbilical
defects were subdivided into defect size <2, 2–5 and >5 cm. The surgeons were asked to indicate the most appropriate repair
(suture, mayo or mesh) for each. The influence of reducibility on the decision to repair was also assessed. Results: Sixty-one of 101 questionnaires were returned valid giving a response rate of 60%. Suture repair was significantly more
likely to be used in all defects <2 cm (P<0.001). Mesh repair was significantly more likely to be recommended in all defects >5 cm (P<0.001). Of defects >5-cm, mesh was recommended for 90% of incisional hernia compared with 81% of epigastric and 76% of para-umbilical
hernia (P<0.001). There was no significant difference in choice of repair for defect size 2–5 cm with opinion divided between suture
and mesh. Irreducibility increased the likelihood of recommendation for repair. Conclusion: This survey shows a lack of consensus on the appropriate repair of ventral abdominal wall hernia amonge practicing consultant
general surgeons. This reflects the contrasting views within the current literature. 相似文献
34.
F. M. González Valverde F. Mauri Barberá M. Molto Aguado N. Torregrosa A. Hernández Quiles F. Menárguez Pina M. J. Gómez Ramos M. García Real J. A. Barreras Mateos J. L. Vázquez Rojas 《European Surgery》2004,36(4):253-256
Summary BACKGROUND: Endometriosis is a relatively common pathology in women of childbearing age and of low parity but rarely shows
extraperitoneal involvement. The main aim of this paper is to raise the attention of specialists to the necessity of carrying
out penetrating diagnosis of nonspecific extraperitoneal masses occurring in women of reproductive age. METHODS: We performed
a retrospective review of six patients diagnosed with extraperitoneal endometriosis who were treated at the Vega Baja University
Hospital (Spain) during the last 5 years. RESULTS: Surgical treatment had positive results in five patients. The preoperative
diagnosis was correctly made in only two patients. The accurate aetiology of endometriosis remains unknown and diagnosis is
based on clinical and cytopathological findings. CONCLUSIONS: Surgical treatment of extraperitoneal endometriosis is recommended.
However, postoperative follow-up is obligatory and hormonal suppressive therapy may be necessary. Medical treatment with gestagens,
Danazol, or agonists of the gonadotropin-releasing hormone are ineffective in endometriomas which are bigger than 2 cm.
相似文献
35.
目的分析单侧听耳患者的鼓室成形术,了解手术方法和手术疗效。方法对9耳慢性化脓性中耳炎胆脂瘤型进行了乳突根治术加鼓室成形术,对37耳慢性化脓性中耳炎单纯型和中耳炎后遗症进行鼓室成形术,并比较术后效果。手术后3个月~1年之间进行术后听力评价。结果46耳单侧听力耳术前言语频率气导平均听阈为60.2±23.1dB HL,骨导听阈35.7±17.0dB HL;手术后的平均气导听阈为51.3±22.6dB HL,骨导听阈为36.3±10.6dB HL。鼓室成形术后疗效评定:37耳外耳道宽敞,人工鼓膜完整,血运好,近正常鼓膜色泽;纯音测听500~2000Hz平均气导听力改善23例(62.16%,23/37),听力不变13例(35.14%,13/37),听力恶化(下降10dB以上)1例(2.70%,1/37)。乳突根治术加鼓室成形术后疗效评定:9耳术腔干洁,人工鼓膜完整,血运好,近正常鼓膜色;纯音测听500~2000Hz平均气导听力改善5例(56.56%,5/9),听力不变4例(44.44%,4/9)。结论各型慢性化脓性中耳炎都可作为单侧听力耳的手术适应症。手术时只要注意手术技巧,认真仔细,一般不会造成手术后骨导听力的下降。术后干耳和保持原有听力是手术的最终目的。 相似文献
36.
Background: There is a growing interest in the use of local anaesthesia for inguinal hernia repair. It certainly seems to
be an acceptable alternative for the elderly. Supporting intravenous sedation, however, still requires monitoring, anaesthetic
personnel and some preparations for the patient. Therefore we set up a feasibility study of hernia repair under local anaesthesia
without intravenous sedation or monitoring in elderly patients. Method: A total of 62 patients (aged 65 years or more) with
unilateral inguinal hernia received a Mesh Plug Repair. Prospectively collected data included procedure-related complications
and information on pain and quality of life as measured by Short Form 36. Results: No procedure-related complications were
noted. Comparing the preoperative scores, the SF-36 on day 14 (n=61) did not differ significantly. After a median follow-up of ten months (n=54), significantly higher scores were found for scales of physical and emotional role and pain (all p<0.05). Twenty-two patients reported some form of pain (40.7%). 94.4% of the patients would recommend the procedure when asked.
Conclusion: The results of this study indicated that Mesh Plug Repair performed under unmonitored local anaesthesia with no
intravenous sedation is a feasible alternative for elderly patients. It has advantages for the medical organization without
disadvantages for the patient. 相似文献
37.
改良式腹腔镜腹膜外补片植入法疝修补术 总被引:4,自引:1,他引:3
目的探讨改进式腹腔镜腹膜外补片植入法腹股沟疝修补术的可行性及临床意义.方法回顾性分析我院2002年6月~2004年10月13例腹股沟疝进行的腹腔镜下经腹腔腹膜外补片植入法联合腹膜缝合覆盖修补术的临床资料.其中腹股沟斜疝9例,直疝4例;其中复发疝1例;右侧8例,左侧4例,双侧1例.结果手术均获成功,单侧手术时间35~85 min,平均50 min,无一例中转开腹,无术后并发症,术后平均住院时间2 d,13例随访1~28个月,平均12个月,无一例复发.结论腹腔镜下经腹腔途径腹膜外补片植入法联合腹膜缝合覆盖术是一种安全、可靠、疗效显著的腹股沟疝修补方法,具有手术操作简单、创伤小、术后疼痛轻、恢复快等优点,可以代替开放手术,值得推广应用. 相似文献
38.
保留齿线悬吊术治疗环状混合痔 总被引:13,自引:1,他引:12
目的:探讨保留齿线悬吊术治疗环状混合痔的临床应用价值.方法:72例环状混合痔病人连续进入观察.随机分为两组:保留齿线悬吊术组(即治疗组36例)和外剥内扎法组(即对照组36例).根据治愈率、治愈时间及安全性方面的结果作评价.结果:保留齿线悬吊术组治愈率(88.89%)与对照组(83.33%)相比无显著性差异.治愈时间(18.42±4.67) d VS(22.11±6.01) d,两组有显著性差异;通过测定肛管直肠压力,显示两组手术均较安全.结论:保留齿线悬吊术治疗环状混合痔与外剥内扎术相比,明显缩短术后伤口愈合时间. 相似文献
39.
40.
40例电视胸腔镜手术体会 总被引:2,自引:0,他引:2
目的 探讨电视胸腔镜(VATS)手术的优点、适应证和手术技巧。方法 回顾总结VATS手术40例。病种有原发性自发性气胸20例,多发性肺大疱3例,Ⅰ期肺癌3例等。手术方式有肺大疱切除23例,肺叶切除术3例(辅助小切口),肺楔形切除4例,纵隔肿瘤切除术3例,结核瘤切除1例,活检3例,胸膜粘连术3例,射频消融1例,纤维板剥脱术1例。结果 本组病例手术时间平均65分钟,失血量少于100ml,中转开胸2例,术后胸液总量平均150ml。胸管置留时间1~7天,平均住院时间7.8天,无气胸、良性肿瘤和结核复发,恶性胸水明显减少或消失,无持续漏气、二次开胸止血和手术死亡等并发症。结论 VATS手术适应证范围较广,微创出血少,美观,恢复快,只要掌握了手术技巧,操作便捷,并发症少,疗效满意。 相似文献