全文获取类型
收费全文 | 36602篇 |
免费 | 3705篇 |
国内免费 | 1592篇 |
专业分类
耳鼻咽喉 | 354篇 |
儿科学 | 668篇 |
妇产科学 | 551篇 |
基础医学 | 3463篇 |
口腔科学 | 710篇 |
临床医学 | 4503篇 |
内科学 | 5235篇 |
皮肤病学 | 570篇 |
神经病学 | 2080篇 |
特种医学 | 1047篇 |
外国民族医学 | 2篇 |
外科学 | 3383篇 |
综合类 | 5726篇 |
现状与发展 | 17篇 |
一般理论 | 25篇 |
预防医学 | 3672篇 |
眼科学 | 996篇 |
药学 | 4102篇 |
56篇 | |
中国医学 | 2459篇 |
肿瘤学 | 2280篇 |
出版年
2024年 | 169篇 |
2023年 | 521篇 |
2022年 | 1419篇 |
2021年 | 1835篇 |
2020年 | 1500篇 |
2019年 | 1200篇 |
2018年 | 1340篇 |
2017年 | 1328篇 |
2016年 | 1184篇 |
2015年 | 1610篇 |
2014年 | 1924篇 |
2013年 | 2095篇 |
2012年 | 3131篇 |
2011年 | 3204篇 |
2010年 | 2323篇 |
2009年 | 1979篇 |
2008年 | 2457篇 |
2007年 | 2268篇 |
2006年 | 2021篇 |
2005年 | 1832篇 |
2004年 | 1349篇 |
2003年 | 1248篇 |
2002年 | 1018篇 |
2001年 | 391篇 |
2000年 | 340篇 |
1999年 | 228篇 |
1998年 | 253篇 |
1997年 | 189篇 |
1996年 | 137篇 |
1995年 | 122篇 |
1994年 | 127篇 |
1993年 | 86篇 |
1992年 | 99篇 |
1991年 | 99篇 |
1990年 | 78篇 |
1989年 | 57篇 |
1988年 | 52篇 |
1987年 | 48篇 |
1986年 | 61篇 |
1985年 | 51篇 |
1984年 | 58篇 |
1983年 | 60篇 |
1982年 | 69篇 |
1981年 | 46篇 |
1980年 | 38篇 |
1979年 | 23篇 |
1978年 | 32篇 |
1977年 | 31篇 |
1974年 | 18篇 |
1973年 | 15篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
Gideon Fait MD Dan Grisaru MD Michael Shenhav MD Michael J. Kupfermine MD Joseph B. Lessing MD M. Reuben Peyser MD Ariel Jaffa MD 《The Australian & New Zealand journal of obstetrics & gynaecology》1997,37(2):174-176
Summary: One hundred five women with a documented pregnancy of 41 weeks' gestation or more, admitted for induction of labour by balloon catheter with extra-amniotic saline instillation, were retrospectively compared to 196 women admitted in spontaneous labour at the same gestational age, with regard to mode of delivery. The success rate of the induction group was 97.1%. The mode of delivery did not differ significantly between the 2 groups. The Caesarean section rates were 11.4% in the induction group versus 9.7% in the spontaneous group. The mode of delivery after induction of labour by balloon catheter with extra-amniotic saline instillation and simultaneously commenced intravenous oxytocin infusion, in pregnancies of 41 weeks or more, is similar to that of spontaneous deliveries at the same gestational age. 相似文献
13.
Dan Theodorescu 《The Journal of urology》1996,155(5):1661-1662
14.
15.
目的 :探讨地塞米松减轻曲马多术后镇痛时恶心呕吐的临床效果。方法 :选择术后自愿硬膜外镇痛(PCEA)的病例 6 0例 ,随机分为试验组 (地塞米松 曲马多 0 .15 %布比卡因 )和对照组 (格拉司琼 曲马多 0 .15 %布比卡因 )。结果 :两组病人术后疼痛评分 (VAS法 ) ,镇静评分及恶心呕吐的发生率无明显差异 (P >0 .0 5 )。结论 :地塞米松可以减轻曲马多术后镇痛时恶心呕吐的发生 ,效果良好 ,不增加副作用 ,价格便宜 相似文献
16.
17.
18.
Marilena Vered Amos Buchner Dan Dayan Moshe Shteif Adi Laurian 《Journal of oral pathology & medicine》2004,33(2):125-128
A case of an unusual lesion from the maxilla is presented. Macroscopically, the lesion was solid and histologically consisted of 'multiple separate keratocysts' of varying size that infiltrated into the surrounding bone and soft tissues. Panoramic image and CT scans showed a multilocular honeycomb ill-defined radiolucency with infiltration into the maxillary sinus and floor of orbit. This lesion should be differentiated from similar odontogenic lesions, such as keratoameloblastoma and papilliferous keratoameloblastoma. As there was no evidence of follicles, islands of ameloblastoma, or papilliferous structures in the entire specimen, the lesion could not be diagnosed as either a keratoameloblastoma or a papilliferous keratoameloblastoma. The invasive and destructive growth behavior, the histopathological features, and the histochemical pattern of the collagen stroma imply that this solid lesion is a neoplasia. It is suggested that the proper term for this lesion is solid variant of odontogenic keratocyst. 相似文献
19.
Chronic recurrent multifocal osteomyelitis and psoriasis—A report of a new association and review of related disorders 总被引:3,自引:0,他引:3
Ronald M. Laxer MDCM FRCPC Assistant Professor Abraham D. Shore MD FRCPC Assistant Professor David Manson MD Chief Resident Susan King MD FRCPC Fellow Earl D. Silverman MD FRCPC Assistant Professor Dan M. Wilmot MD FRCPC Assistant Professor 《Seminars in arthritis and rheumatism》1988,17(4):260-270
In summary, we have described two patients with CRMO and psoriasis, and have reviewed the musculoskeletal manifestations associated with pustular eruptions of the palms and soles. In view of the frequent occurrence of PPP in patients with CRMO, we suggest that the occurrence of psoriasis in our two patients is more than coincidence, and that noninfectious, inflammatory lesions of bone may be another musculoskeletal manifestation of psoriasis. This rare association, as well as the association of PPP with disorders associated with new bone formation, may shed new insights on the relatively common finding of periosteal elevation associated with psoriatic arthritis and the occasional severe juxta-articular osteolytic destructive bone lesions seen in psoriatic arthritis. 相似文献
20.
Yew-Long Lo Yang-Fang Dan Teng-Hee Leoh Yam-Eng Tan Siti Nurjannah Pavanni Ratnagopal 《Journal of clinical neurophysiology》2004,21(2):110-113
Repetitive nerve stimulation (RNS) is a simple and rapid method for evaluation of neuromuscular transmission defects. Although the effect of exercise in conjunction with RNS is well recognized, it has not been standardized in actual patient and control groups. In a prospective study over a period of 1 year, the authors evaluated the effect of exercise in conjunction with RNS in comparison with conventional 3-Hz RNS at rest in the clinical setting. Fifty-four patients who were referred for possible neuromuscular transmission disorders, in addition to 35 healthy control subjects, were studied. Amplitude and area decremental responses with RNS at rest and after 20 seconds of maximal exercise at 1-minute intervals up to 3 minutes were evaluated. The use of RNS with exercise resulted in additional diagnostic yield of up to 36.4% compared with conventional 3-Hz RNS at rest. The standardized use of exercise with RNS is advocated for increasing its diagnostic yield in the neurophysiologic laboratory. 相似文献