全文获取类型
收费全文 | 4758篇 |
免费 | 301篇 |
国内免费 | 41篇 |
专业分类
耳鼻咽喉 | 56篇 |
儿科学 | 160篇 |
妇产科学 | 35篇 |
基础医学 | 601篇 |
口腔科学 | 84篇 |
临床医学 | 342篇 |
内科学 | 1284篇 |
皮肤病学 | 67篇 |
神经病学 | 312篇 |
特种医学 | 230篇 |
外科学 | 773篇 |
综合类 | 50篇 |
一般理论 | 1篇 |
预防医学 | 141篇 |
眼科学 | 166篇 |
药学 | 186篇 |
中国医学 | 10篇 |
肿瘤学 | 602篇 |
出版年
2024年 | 6篇 |
2023年 | 60篇 |
2022年 | 112篇 |
2021年 | 244篇 |
2020年 | 119篇 |
2019年 | 155篇 |
2018年 | 221篇 |
2017年 | 149篇 |
2016年 | 159篇 |
2015年 | 151篇 |
2014年 | 206篇 |
2013年 | 257篇 |
2012年 | 373篇 |
2011年 | 371篇 |
2010年 | 190篇 |
2009年 | 151篇 |
2008年 | 296篇 |
2007年 | 272篇 |
2006年 | 239篇 |
2005年 | 275篇 |
2004年 | 267篇 |
2003年 | 200篇 |
2002年 | 185篇 |
2001年 | 42篇 |
2000年 | 21篇 |
1999年 | 29篇 |
1998年 | 39篇 |
1997年 | 32篇 |
1996年 | 27篇 |
1995年 | 18篇 |
1994年 | 21篇 |
1993年 | 15篇 |
1992年 | 22篇 |
1991年 | 21篇 |
1990年 | 23篇 |
1989年 | 14篇 |
1988年 | 16篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1984年 | 6篇 |
1983年 | 9篇 |
1982年 | 8篇 |
1981年 | 10篇 |
1980年 | 6篇 |
1979年 | 9篇 |
1977年 | 5篇 |
1975年 | 6篇 |
1974年 | 4篇 |
1973年 | 4篇 |
1970年 | 4篇 |
排序方式: 共有5100条查询结果,搜索用时 578 毫秒
101.
102.
103.
104.
Cutoff value of 1 h, 50 g glucose challenge test for screening of gestational diabetes mellitus in a Japanese population 总被引:14,自引:0,他引:14
Miyakoshi K Tanaka M Ueno K Uehara K Ishimoto H Yoshimura Y 《Diabetes research and clinical practice》2003,60(1):63-67
A total of 2651 consecutive native Japanese women who underwent a glucose challenge test (GCT) were retrospectively investigated. GCT was performed between 24 and 27 weeks of gestation; each subject received a 50 g oral glucose load without regard to the fasting or fed state, followed by a determination of 1 h venous plasma glucose level. Women demonstrating GCT exceeding 130 mg/dl received a 75 g, 2 h oral glucose tolerance test to determine whether or not they had gestational diabetes mellitus (GDM). All women with GDM were treated with a strict diabetic protocol including insulin therapy. Forty-nine (1.8%) women were diagnosed to have GDM. The receiver-operator characteristic curve identified a GCT finding above 140 mg/dl as the cutoff value for detecting GDM, which showed a sensitivity and specificity of 96 and 76%, respectively. Our results suggest that the cutoff value of a 50 g GCT is 140 mg/dl to identify pregnancies with GDM in a Japanese population. 相似文献
105.
Yuko Kitagawa Hitoshi Idani Haruhiro Inoue Harushi Udagawa Ichiro Uyama Harushi Osugi Natsuya Katada Hiroya Takeuchi Yasunori Akutsu Shinya Asami Ken Ishikawa Akihiko Okamura Taiki Ono Fumihiko Kato Toshiki Kawabata Koichi Suda Tomoko Takesue Tsuyoshi Tanaka Mai Tsutsui Kei Hosoda Satoru Matsuda Tatsuo Matsuda Mariko Mani Tatsuya Miyazaki 《Asian journal of endoscopic surgery》2015,8(2):114-124
106.
Risk factors for seizures and antiepileptic drug‐associated adverse effects in high‐grade glioma patients: A multicentre,retrospective study in Hong Kong
下载免费PDF全文
![点击此处可从《Surgical Practice》网站下载免费的PDF全文](/ch/ext_images/free.gif)
107.
108.
Nakamae H Tsumura K Akahori M Terada Y Yamane T Hayashi T Saito I Kaneko M Okamoto N Ichihara Y Ohta K Hino M 《Internal medicine (Tokyo, Japan)》2004,43(5):379-387
OBJECTIVE: The aim of this study was to investigate the relation of QT dispersion to left ventricular (LV) systolic and diastolic function in patients undergoing anthracycline therapy. METHODS: We used echocardiography to evaluate LV systolic and diastolic function and electrocardiography to evaluate QT dispersion and corrected QT dispersion (QTcD) in patients with hematological diseases, who received anthracycline therapy. PATIENTS: Seventy-two patients with hematological diseases who were receiving anthracycline treatment were enrolled in the present study. RESULTS: LV end-diastolic diameter or LV end-systolic diameter had a significant positive correlation to QTcD (r = 0.35, p < 0.01, r = 0.43, p < 0.01). Also left ventricular ejection fraction of (LVEF) or fractional shortening had a significant negative correlation to QTcD (r = -0.46, p < 0.001, r = -0.27, p = 0.02). The highest QTcD group had a significantly larger LV end-diastolic diameter or LV end-systolic diameter than the lowest QTcD [48.5 +/- 5.7 vs. 44.4 +/- 4.5 (mm), p < 0.001, 34.1 +/- 6.4 vs. 28.8 +/- 4.3 (mm), p < 0.001] and the highest QTcD group had a significantly lower LVEF than the lowest QTcD [57.5 +/- 8.0 vs. 65.5 +/- 6.4 (%), p < 0.001]. On the other hand, none of the diastolic function markers were significantly correlated with QTcD. CONCLUSION: We concluded that increased QTcD is correlated with LV dilation and systolic dysfunction induced by anthracycline therapy, and does not reflect a dispersion of ventricular repolarization or asynchronous motion. 相似文献
109.
Arai Y Kumamoto K Sugiura M Washio M Miura H Kudo K 《Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics》2005,42(4):432-443
AIM: To develop a Home Care Quality Assessment Index (HCQAI) that may be used for overall assessment of home care in three areas: 1) conditions of the impaired elderly (outcome); 2) caregiver and caregiving situation (process); and 3) the home care environment (input). METHODS: To develop the HCQAI, a list of items for assessment was drawn up, and the reliability of each item was verified. Reliability was investigated by a) test-retest reliability, and b) inter-rater reliability. Impaired elderly and their family caregivers who used the visiting nurse station of the Okazaki Medical Association were surveyed. A kappa coefficient of 0.4 or greater generally served as the inclusion criteria for test-retest and inter-rater reliability of each item. A factor analysis was conducted for items satisfying the above criteria, using 10 scales. RESULTS: Cronbach's alpha showing internal consistency (reliability) for these scales was 0.6-0.9. Two scales corresponded to care within the home: the "barrier-free" and "improvement of water facilities"; three to the caregiver situation: "dressing appropriate for the season," "mistreatment by the elderly," and "hygiene and assistance"; and five involved conditions of the impaired elderly: "cognition," "paralysis," "vision and hearing," "ADL," and "gross motor." CONCLUSION: The HCQAI developed in the present study, consisting of 41 items, can assess quality of home care both objectively and comprehensively, based on professional staff observation. Few indexes of this kind exist worldwide to scientifically assess input, process and outcome in the delivery of quality home care for the impaired elderly. 相似文献
110.
Norihiro Sato Kei Yabuki Kazunori Shibao Yasuhisa Mori Toshihisa Tamura Aiichiro Higure Koji Yamaguchi 《HPB : the official journal of the International Hepato Pancreato Biliary Association》2014,16(2):177-182
Background: A prolonged operative time is associated with adverse post-operative outcomes in laparoscopic surgery. Although a single-incision laparoscopic cholecystectomy (SILC) requires a longer operative time as compared with a conventional laparoscopic cholecystectomy, risk factors for a prolonged operative time in SILC remain unknown.Methods: A total of 20 clinical variables were retrospectively reviewed to identify factors for a prolonged operative time (longer than 3 h) in a total of 220 consecutive patients undergoing SILC.Results: The median operative time was 145 min (range, 55–435) and a prolonged operative time was required in 62 patients (28%). Independent factors that predict a prolonged operative time as identified through multivariate analysis were body mass index (BMI) (P = 0.009), acute cholecystitis (P < 0.001) and operator (resident or staff surgeon) (P < 0.001). Furthermore, a prolonged operative time was significantly associated with an increased amount of intra-operative blood loss (P < 0.001) and a prolonged stay after surgery (P < 0.001).Conclusions: These findings suggest that a higher BMI, acute cholecystitis and a resident as an operator significantly increase the duration of SILC procedures. 相似文献