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101.
102.
本文首次报导了螨类接种豚鼠气管所引起的肺部病变。螨类接种后的第6天发现肺部已形成典型的结节性病灶。结节呈圆锥形,淡黄色,直径1~5mm之间。镜下主要表现为细支气管和细支气管周围的病变。和早年报导的猴肺螨病肺部病变比较,有以下不同,肺实质内有明显的异物肉芽肿形成,炎症反应中嗜酸性细胞浸润不明显,而有更多的异物巨细胞形成;细支气管周围的小动脉受到损害:部分小动脉壁平滑肌明显增厚,以致腔隙变窄,部分小动脉腔内可见到虫体。根据我们实验研究证明,螨类接种豚鼠气管可引起肺部的典型病变.因而认为用豚鼠作为肺螨病的动物模型是有希望的。 相似文献
103.
广西壮、汉族体重指数与血压、血脂、脂肪肝等相关因素的关系 总被引:4,自引:0,他引:4
目的:探讨广西地区人群体重指数(BMI)与血压、血糖、血脂、脂肪肝、心电图异常、性别、民族及其他心脑血管病史等因素的相关性,并比较这些因素在壮族与汉族人群中的差异。方法:对在本院及田阳县、田东县参加体检的1105例壮族与汉族人群询问病史并检查身高、体重、血压、空腹血糖、血脂、肝脏B超、心电图等。结果:在按制其他因素后,汉族人群BMI与脂肪肝、舒张压水平及高血压病史呈密切正相关关系,男性BMI高于女性;壮族人群BMI与脂肪肝、血清甘油三酯浓度及收缩压水平有密切正相关关系,汉族人群的年龄、BMI、血清甘油三酯浓度、胆固醇浓度、收缩压水平、脂肪肝检出率及心电图异常检出率均较壮族人群高。结论:肥胖与脂肪肝、血压、血脂密切相关,且广西汉族人群肥胖、脂肪肝、高血脂、高血压及心电图异常较壮族人群更常见。 相似文献
104.
K. Miyashita I. Morioka T. Tanabe H. Iwata S. Takeda 《International archives of occupational and environmental health》1992,64(5):347-351
Summary To study the effects of construction machinery operation on subjective symptoms, a questionnaire survey was caried out among construction machinery operators by a self-reporting method. Subjects were 184 power shovel operators, 127 bulldozer operators, 44 forklift operators as operator groups, and 44 office workers as a control. Their ages were in a range of 30–49 years. The questionnaire contained 20 symptoms referring to fatigue, digestive problems, and upper or lower limbs or back problems. The prevalence rate and symptom characteristics were examined. The dominant symptoms of the operator groups were stiff shoulder, low back pain, and stomack symptoms. The prevalence rate of low back pain was significantly different between forklift operators and controls. No significant differences were found in the symptoms of upper limbs and fingers between operator groups and controls. The prevalence of Raynaud's phenomenon was 0.5%–2.3% in the operator groups and 2.3% in the control group. 相似文献
105.
Takuo Fujita Masaaki Fukase Takao Shimada Hironosuke Yamamoto 《Journal of bone and mineral metabolism》1992,10(1):37-40
In addition to estrogen widely used all over the world for the prevention of postmenopausal osteoporosis, calcitonin and vitamin
D derivatives are commonly employed to treat established osteoporosis at higher age in Japan. In order to critically assess
the usefulness of vitamin D derivatives and calcitonin alone or in combination on the advancement of vertebral deformity at
higher age, 32 osteoporotic patients with vertebral deformity with the mean age of 79 were randomly divided into 4 groups
with indistinguishable age and severity of the vertebral deformity. Group 1 served as the control without specific medications
for osteoporosis. Group 2 was treated with 10 units elcatonin (eel calcitonin derivative) injected intramuscularly twice a
week. Group 3 was given 0.75 to 1.5μg/day 1α (OH) vitamin D3 orally. Group 4 was given a combination of treatments used in Groups 2 and 3.
In the lateral X-ray film of the spine taken prior to the test and every 6 months thereafter, the shape of the vertebral body
T8 through L4 was monitored by measuring the anterior, central and posterior heights. Decrease of the vertebral height ratio; anterior
or middle height/posterior or adjacent intact posterior height, by more than 20% of the original value or from above to below
0.80 both appeared to be inhibited during administration of 1α (OH) vitamin D3. Such effect seems to be augmented by simultaneous administration of elcatonin. Actual decrease of vertebral height ratio
values and the per cent fall from the original value significantly less in Groups 3 and 4 than in Group 1. Development of
vertebral deformity assessed by the changes of the vertebral height thus appears to decrease during treatment with 1α (OH) vitamin D3 especially together with calcitonin in established osteoporosis. 相似文献
106.
107.
D. Agnusdei G. Crepaldi G. Isaia G. Mazzuoli S. Ortolani M. Passeri L. Bufalino C. Gennari 《Calcified tissue international》1997,61(2):142-147
One hundred ninety-eight postmenopausal women (aged 50–65 years) with vertebral bone density (VBD) 1 SD below the mean value
for normal, age-matched, postmenopausal subjects were enrolled in six Italian centers and 134 completed 2 years of treatment.
All subjects were randomly allocated to a 2-year treatment with oral ipriflavone (200 mg t.i.d.) or a matching placebo, according
to a double-blind, parallel group design. All patients also received an oral daily calcium supplement of 1 g as calcium carbonate.
VBD and markers of bone turnover were measured at baseline, and every 6 months. A complete routine analysis of liver and kidney
functions along with hematological parameters were measured before and at the end of treatment period. The valid completers
analysis showed a significant increase of VBD in ipriflavone-treated women with average percent changes of +1.4 after 1 year,
and +1% at the end of treatment period (P < 0.05). The placebo group presented a significant decrease of VBD after 2 years of treatment (P < 0.05). The difference between treatments was significant (P < 0.01). The intention to treat analysis confirmed the significant decrease of VBD in the placebo group, with no changes
in ipriflavone-treated women. Skeletal ALP significantly decreased in ipriflavone-treated women (P < 0.05). Serum BGP and urine HOP/Cr showed a significant decrease only in ipriflavone-treated women, suggesting an inhibitory
effect on bone turnover rate. Adverse reactions, mainly gastrointestinal, occurred to a similar extent in the two treatment
groups. The evaluation of patients' compliance, assessed by residual tablets count, revealed a drug intake of more than 80%
after 2 years in 92.5% and 92.8% of patients treated with ipriflavone or placebo, respectively. This study demonstrates that
ipriflavone can prevent bone loss in postmenopausal women with low bone mass.
Received: 1 April 1996 / Accepted: 5 March 1997 相似文献
108.
James P. Bartek MD Anthony Grasch PA-C Stephen R. Hazelrigg MD 《The Annals of thoracic surgery》1997,63(6):1783-1785
Video-assisted thoracic surgery or thoracoscopy has proved to be valuable in many settings in thoracic surgery. The use of video-assisted thoracic surgery in trauma has been limited, especially with respect to penetrating trauma. We report the use of thoracoscopy to remove intrathoracic fragments of glass and avert the need for a thoracotomy. 相似文献
109.
B. Amblard C. Assaiante J.-C. Fabre L. Mouchnino J. Massion 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》1997,114(2):214-225
The ability voluntarily to stabilize the head in space during lateral rhythmic oscillations (0.59±0.09 Hz) of the trunk has
been investigated during microgravity (μG) and normal gravity (nG) conditions (parabolic flights). Five healthy young subjects,
who gave informed consent, were examined. The movements were performed with eyes open or eyes closed, during phases of either
μG or nG. The main result was that head orientation with respect to vertical may be stabilized about the roll axis under μG
with, as well as without vision, despite the reduction in vestibular afferent and muscle proprioceptive inputs. Moreover,
the absence of head stabilization about the yaw axis confirms that the degrees of freedom of the neck can be independently
controlled, as was previously reported. These results seem to indicate that voluntary head stabilization does not depend crucially
upon static vestibular afferents. Head stabilization in space may in fact be organized on the basis of either dynamic vestibular
afferents or a short-term memorized postural body schema.
Received: 4 October 1995 / Accepted: 30 September 1996 相似文献
110.
利用生物电阻抗测量人体脂肪的研究 总被引:12,自引:3,他引:9
本文根据瘦体组织电传导远比脂肪组织强的原理,研制了人体脂肪分析仪(BFA),采用4个电极,引出无痛信号(800μA、50kHz)进入人体,测试电阻抗(Z),编入计算机软件,运算人体脂肪量。选择30名18~20岁男性青年进行测量条件试验,得出食后半小时,上午、下午检测均可,喝少量水(少于500ml)对测量无明显影响(P>0.05)。另选52名受试者(男9,女43)年龄19~65岁,对用BFA测量的Z、体脂百分比(%BF)和用美国BC一300人体成分分析仪测量的电阻(R)、%BF进行了相关分析,r值分别为0.995(S(y.x))=7.97,P<0.01)和0.996(S(y.x))=0.61,P<0.01)。最后,用BFA对79名健康人(男22,女57)、年龄39.0±11.8岁、身高163±7.0cm、体重63.1±10.2kg测量体脂,男性体脂22.5±9.2%,女性体脂34.7±7.2%,用体脂判断肥胖比用体重判断肥胖发生率高,特别是女人、中老年人更明显。 相似文献