全文获取类型
收费全文 | 1960篇 |
免费 | 198篇 |
国内免费 | 51篇 |
专业分类
耳鼻咽喉 | 27篇 |
儿科学 | 96篇 |
妇产科学 | 45篇 |
基础医学 | 230篇 |
口腔科学 | 58篇 |
临床医学 | 288篇 |
内科学 | 367篇 |
皮肤病学 | 30篇 |
神经病学 | 152篇 |
特种医学 | 202篇 |
外科学 | 239篇 |
综合类 | 40篇 |
一般理论 | 2篇 |
预防医学 | 173篇 |
眼科学 | 26篇 |
药学 | 124篇 |
1篇 | |
中国医学 | 9篇 |
肿瘤学 | 100篇 |
出版年
2023年 | 9篇 |
2022年 | 8篇 |
2021年 | 17篇 |
2020年 | 21篇 |
2019年 | 15篇 |
2018年 | 33篇 |
2017年 | 35篇 |
2016年 | 39篇 |
2015年 | 45篇 |
2014年 | 53篇 |
2013年 | 63篇 |
2012年 | 68篇 |
2011年 | 67篇 |
2010年 | 62篇 |
2009年 | 82篇 |
2008年 | 79篇 |
2007年 | 76篇 |
2006年 | 61篇 |
2005年 | 69篇 |
2004年 | 47篇 |
2003年 | 60篇 |
2002年 | 57篇 |
2001年 | 60篇 |
2000年 | 53篇 |
1999年 | 53篇 |
1998年 | 85篇 |
1997年 | 91篇 |
1996年 | 67篇 |
1995年 | 61篇 |
1994年 | 43篇 |
1993年 | 52篇 |
1992年 | 43篇 |
1991年 | 37篇 |
1990年 | 35篇 |
1989年 | 48篇 |
1988年 | 42篇 |
1987年 | 47篇 |
1986年 | 39篇 |
1985年 | 57篇 |
1984年 | 30篇 |
1983年 | 19篇 |
1982年 | 15篇 |
1981年 | 22篇 |
1980年 | 17篇 |
1979年 | 9篇 |
1978年 | 15篇 |
1977年 | 19篇 |
1976年 | 9篇 |
1969年 | 7篇 |
1968年 | 9篇 |
排序方式: 共有2209条查询结果,搜索用时 15 毫秒
1.
Neurosyphilis today is a rare problem. We describe a man who presented with organic brain syndrome, psychosis and incontinence, and diagnosis was neurosyphilis with resultant bladder dysfunction. Urodynamic studies defined the voiding dysfunction as detrusor areflexia with a positive bethanechol test. This case reminds us of the necessity of obtaining a test for venereal disease to rule out neurosyphilis in patients with idiopathic voiding dysfunction. 相似文献
2.
3.
CM Reid M. Nelson P. Beckinsale P. Ryan LMH Wing LJ Beilin MA Brown GLR Jennings CI Johnston J. Marley JJ McNeil TO Morgan J. Shaw ID Steven MJ West 《Clinical and experimental pharmacology & physiology》1997,24(5):370-373
1. The present study aimed to determine the feasibility of conducting a 5 year cardiovascular outcome trial of the treatment of 6000 elderly hypertensive patients in Australian general practices. 2. General practitioners (GPs) were invited to participate by mail and personal follow-up. Patient records were reviewed to identify subjects for a blood pressure (BP) screening programme. Blood pressure was measured on three occasions and eligible subjects were included if the average BP was 160 mmHg systolic or 90 mmHg diastolic if systolic BP was 140 mmHg. 3. Seven hundred and forty-one GPs were approached and 89 were enrolled in the study (12% of mail invites and 75% of those receiving a personal contact). In 16 practices where screening was completed, 82 000 records were reviewed to identify 4% patients eligible for screening. Twenty-two per cent of eligible subjects attended screening. Of 1938 subjects screened, 180 (9%) had BP 5=160/90 mmHg. Forty-seven percent of subjects (n = 916) were receiving antihypertensive therapy and 184 (20%) were withdrawn from therapy. One hundred and sixteen (63%) of these subjects had BP return to study entry levels within 6 weeks. Fifty-seven newly diagnosed and 81 previously treated subjects were randomized (7% of the screened population). 4. Based on the high participation rate of GPs, the response rate of patients to attend a BP screening programme and the 7% randomization to screening ratio for entry into the study, the ANBP2 pilot study has demonstrated that it is feasible to recruit subjects from Australian general practices to a cardiovascular outcome trial. 相似文献
4.
5.
LY Chow MRCPsych D Chung MRCPsych V Leung MB BS TF Leung MB ChB CM Leung MRCPsych 《International journal of clinical practice》1997,51(5):330-331
Akathisia as a side-effect of metoclopramide has received increasing attention in consultation-liaison psychiatry in recent years. A case of metoclopramide-induced akathisia resulting in a suicide attempt is reported in order to highlight the suffering of such patients and the factors that lead to misdiagnosis. 相似文献
6.
B G Simons-Morton T Baranowski G S Parcel N M O'Hara R C Matteson 《American journal of preventive medicine》1990,6(4):218-227
We administered a food frequency instrument to third-fifth grade students (n = 943) in four Texas schools. Comparison of foods reported on the food frequency questionnaire and on 24-hour dietary recalls (n = 7) produced a percent agreement of 83.3. The most frequent 25 foods accounted for 64.0% of food choices across all meals, 93.5% of breakfast choices, 76.4% of lunch choices, 70.5% of supper choices, and 76.0% of snack choices. Breads, milk, hamburger or steak, soda pop, tomato sauce or tomatoes, and cheese were the most frequently consumed foods. Fruits and juices accounted for 6.1% of total selections for boys and 6.6% for girls, while vegetables accounted for 15.7% of total selections for boys and 16.2% for girls. Fruit was more likely to be consumed for snacks than for meals, and vegetables were consumed in about the same frequency at lunch and supper and for snacks. We analyzed the total fat, saturated fat, and sodium content of the most frequently consumed foods. Seventeen of the top 25 foods for the total day and 13-16 for each meal or snack exceeded by at least 50% the recommended levels for fat, saturated fat, or sodium. The pattern of consumption was one of frequent consumption of a relatively small number of foods, many of which are high in fat or sodium. 相似文献
7.
8.
Caporale CM Capasso M Lucani M Gandolfi P De Angelis MV Di Muzio A Caporale V Uncini A . 《Journal of the peripheral nervous system : JPNS》2004,9(2):114-115
Campylobacter jejuni (C. jejunj) infection is the most common antecedent in the axonal variant of Guillain‐Barré syndrome (GBS). Antibodies against nerve gangliosides found in GBS patients recognize cross‐reactive epitopes in the lipopolysaccharide (LPS) of C. jejuni. This led to the molecular mimicry hypothesis of GBS. We immunized eleven rabbits with a LPS extracted from HS:19 C. jejuni strain isolated from a patient with GBS and complete Freund's adjuvant (CFA)(group I). In a second experiment we immunized seven rabbits with LPS, CFA and keyhole limpet hemocyanin (KLH)(group II). All group I rabbits developed high titers of anti‐LPS, anti‐GM1, anti‐GD1b antibodies and lower titers of anti‐GD1a. One rabbit, 50 days after initial inoculation, showed tremor and weakness. All rabbits of group II developed high titres of antiganglioside antibodies and six animals showed weakness 59–113 days after initial inoculation. Two rabbits died. Pathology showed mild to moderate, tendentially grouped, axonal degeneration in sciatic nerves of four out of five animals. Control rabbits of group I (immunized with CFA only) did not develop antibodies, controls of group II (immunized with CFA + KLH) developed low titers of IgG anti‐GM1. None developed neurological signs or showed axonal degeneration. C. jejuni LPS is a potent B‐cell stimulator capable to induce a strong antiganglioside response in rabbits. However, to induce the neuropathy is crucial to employ KLH, a glycoprotein known to stimulate both humoral and cellular responses. This animal model reproduces the pathogenetic process hypothesized in axonal GBS with antiganglioside antibodies post C. jejuni infection. 相似文献
9.
10.