全文获取类型
收费全文 | 141933篇 |
免费 | 7367篇 |
国内免费 | 153篇 |
专业分类
耳鼻咽喉 | 2270篇 |
儿科学 | 4788篇 |
妇产科学 | 3300篇 |
基础医学 | 21170篇 |
口腔科学 | 4599篇 |
临床医学 | 12308篇 |
内科学 | 25878篇 |
皮肤病学 | 3979篇 |
神经病学 | 14538篇 |
特种医学 | 5995篇 |
外科学 | 21585篇 |
综合类 | 645篇 |
一般理论 | 41篇 |
预防医学 | 8040篇 |
眼科学 | 3056篇 |
药学 | 9689篇 |
中国医学 | 202篇 |
肿瘤学 | 7370篇 |
出版年
2023年 | 825篇 |
2022年 | 527篇 |
2021年 | 1370篇 |
2020年 | 1270篇 |
2019年 | 1528篇 |
2018年 | 3074篇 |
2017年 | 2605篇 |
2016年 | 3371篇 |
2015年 | 2917篇 |
2014年 | 3302篇 |
2013年 | 5739篇 |
2012年 | 7288篇 |
2011年 | 8176篇 |
2010年 | 4804篇 |
2009年 | 3461篇 |
2008年 | 8282篇 |
2007年 | 8725篇 |
2006年 | 8437篇 |
2005年 | 8317篇 |
2004年 | 7816篇 |
2003年 | 7817篇 |
2002年 | 7728篇 |
2001年 | 5299篇 |
2000年 | 6744篇 |
1999年 | 3757篇 |
1998年 | 1564篇 |
1997年 | 1283篇 |
1996年 | 1000篇 |
1995年 | 810篇 |
1994年 | 828篇 |
1993年 | 786篇 |
1992年 | 745篇 |
1991年 | 634篇 |
1990年 | 593篇 |
1989年 | 628篇 |
1988年 | 531篇 |
1987年 | 624篇 |
1986年 | 505篇 |
1985年 | 728篇 |
1984年 | 692篇 |
1983年 | 598篇 |
1982年 | 626篇 |
1981年 | 590篇 |
1980年 | 545篇 |
1979年 | 505篇 |
1978年 | 467篇 |
1977年 | 500篇 |
1976年 | 423篇 |
1975年 | 434篇 |
1974年 | 392篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
U. Bolm-Audorff S. Brandenburg T. Brüning H. Dupuis R. Ellegast G. Elsner K. Franz H. Grasshoff V. Grosser L. Hanisch B. Hartmann E. Hartung K. G. Hering G. Heuchert M. Jäger J. Krämer Dr. A. Kranig E. Ludolph A. Luttmann A. Nienhaus W. Pieper K.-D. Pöhl T. Remé D. Riede G. Rompe K. Schäfer S. Schilling E. Schmitt F. Schröter A. Seidler M. Spallek M. Weber 《Trauma und Berufskrankheit》2005,7(3):211-252
Occupational diseases Nos. 2108 and 2110 correspond to intervertebral disc-related diseases of the lumbar spine from many years of carrying or lifting heavy loads, occupations in extreme postures of full flexion or oscillation of the whole body when seated, and which compel the cessation of all activities which are or could be the cause for the origin, exacerbation or recurrence of the disease. These occupational diseases came into force at the start of 1993, but there have been considerable problems in their implementation. The present Part I of the contribution is the result of the work of an interdisciplinary study group and contains medical criteria for the assessment of possibly strain-related clinical characteristics and the evaluation of other possible causes. Part II is to be published in Volume 4/2005 and will deal with questions related to forced cessation and to the assessment of the loss of earning ability. Agreement was reached in many areas related to the assessment of occupational claims. This should allow for evidence-based decision making in the future for the occupational diseases Nos. 2108 and 2110. 相似文献
73.
74.
OBJECTIVE: This review examines acute and chronic whiplash-associated disorders to facilitate assessment, treatment and rehabilitation for further research and evidence-based practices. DESIGN: A review of the literature. RESULTS AND CONCLUSION: Whiplash-associated disorders account for a large proportion of the overall impairment and disability caused by traffic injuries. Rarely can a definite injury be determined in the acute (or chronic) phase. Crash-related factors have been identified, and several trauma mechanisms possibly causing different injuries have been described. Most whiplash trauma will not cause injury, and the majority of patients (92-95%) will return to work. Litigation is not a major factor. Cognitive impairments are not the same as brain injury. Variables such as pain intensity, restricted motion, neurological symptoms and signs, together with central nervous system symptoms can be used to predict a situation with risk of remaining complaints. Influences of other factors--the same as for other chronic pain conditions--also exist. Persistent/chronic pain is not merely acute pain that persists over time; changes occur at different levels of the pain transmission system. Chronic whiplash-associated disorders are associated with problems concerning social functioning, daily anxieties and satisfaction with different aspects of life. Adequate information, advice and pain medication together with active interventions might be more effective in the acute stage. Early multidisciplinary rehabilitation focusing on cognitive-behavioural changes might be of value. To develop specific treatment and rehabilitation, it is important to identify homogenous subgroups. 相似文献
75.
Nonconvulsive status epilepticus may be subdivided into generalized (absence) status and complex partial status. The latter is regarded as a rarity, whereas the former constitutes the dominant part of the hitherto reported cases. We report 10 consecutive cases of adult patients with nonconvulsive status epilepticus, all documented by ictal electroencephalographic (EEG) recordings. Five had a complex partial status; the origin of the complex partial status appeared to be frontal in four of these patients. Three had recurrent complex partial seizures with incomplete recovery between seizures, and two had more continuous symptoms. One of the latter exhibited neither motor phenomena nor automatisms. The effect of diazepam or clonazepam was immediate in all 10 cases though transient in eight. A lasting control of the status was not achieved in six patients until i.v. phenytoin was added. The difficulties in the differentiation between complex partial status and absence status despite ictal EEG recordings are discussed, illustrated by a case with seizure discharges of a focal onset which rapidly generalized. The study indicates that complex partial status may be more common and the clinical expressions of absence status more variable than hitherto recognized. 相似文献
76.
Andrology was included as a further subject for continuing education in the Model Ordinance on Continuing Education at the 106th German Physicians’ Meeting in Cologne in 2003. In addition to fertility disorders, this discipline comprises medical care for men with fertility disorders, erectile dysfunction, disorders of libido, ejaculation, and coitus, various forms of hypogonadism, and delayed puberty. Furthermore, this field also covers questions concerning male contraception, gynecomastia, and male senescence. Diagnostic procedures in andrology require close interdisciplinary cooperation with practitioners of gynecology, human genetics, and psychosomatic medicine. It includes medical history, clinical examination, and laboratory analyses. Except to confirm azoospermia, it is not possible to make a definitive prognosis for fertility based on semen analysis. Functional tests allow a better assessment of the spermatozoa’s fertility since 25–30% of men desiring a child exhibit reduced spermatozoal functions, which cannot be verified on routine semen analysis. 相似文献
77.
Heinrich Többen 《International journal of legal medicine》1940,34(1-3):186-208
Ohne ZusammenfassungReferat.HerrBuhtz-Breslau berichtet über den Fall Wolff-Breslau. Die klar überlegte Mordtat des frühreifen Jugendlichen hatte den Anlaß zu dem Gesetz über jugendliche Schwerverbrecher gebildet.HerrRücker-Hamburg berichtet über einen Arzt, der das Opfer einer Hysterica geworden war. Bei einer erregten Auseinandersetzung hatte er die Frau mit dem ihr entrissenen und gegen ihn gezückten Dolch niedergestoßen und getötet. Der Täter hatte 18 Jahre unter fremdem Namen in China das große Hospital einer deutsch-evangelischen Mission geleitet. Nach Verurteilung zu 2 Jahren Gefängnis und erlangter Bewährungsfrist ist er nach China zurückgekehrt. 相似文献
78.
79.
80.
Dr. Stölting Dr. Bruns 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》1888,34(3):92-102
Ohne Zusammenfassung 相似文献