全文获取类型
收费全文 | 939篇 |
免费 | 56篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 12篇 |
儿科学 | 51篇 |
妇产科学 | 17篇 |
基础医学 | 131篇 |
口腔科学 | 5篇 |
临床医学 | 119篇 |
内科学 | 321篇 |
皮肤病学 | 48篇 |
神经病学 | 29篇 |
特种医学 | 51篇 |
外科学 | 58篇 |
综合类 | 24篇 |
预防医学 | 56篇 |
眼科学 | 12篇 |
药学 | 31篇 |
1篇 | |
肿瘤学 | 30篇 |
出版年
2021年 | 11篇 |
2020年 | 10篇 |
2019年 | 11篇 |
2016年 | 11篇 |
2015年 | 16篇 |
2014年 | 13篇 |
2013年 | 11篇 |
2012年 | 27篇 |
2011年 | 31篇 |
2010年 | 19篇 |
2009年 | 27篇 |
2008年 | 31篇 |
2007年 | 34篇 |
2006年 | 35篇 |
2005年 | 30篇 |
2004年 | 34篇 |
2003年 | 28篇 |
2002年 | 22篇 |
2001年 | 26篇 |
2000年 | 28篇 |
1999年 | 32篇 |
1998年 | 13篇 |
1997年 | 28篇 |
1996年 | 12篇 |
1995年 | 13篇 |
1994年 | 13篇 |
1993年 | 10篇 |
1992年 | 24篇 |
1991年 | 26篇 |
1990年 | 31篇 |
1989年 | 27篇 |
1988年 | 32篇 |
1987年 | 24篇 |
1986年 | 25篇 |
1985年 | 17篇 |
1984年 | 19篇 |
1983年 | 11篇 |
1982年 | 10篇 |
1981年 | 12篇 |
1979年 | 8篇 |
1978年 | 13篇 |
1977年 | 11篇 |
1976年 | 10篇 |
1974年 | 11篇 |
1973年 | 13篇 |
1972年 | 9篇 |
1971年 | 9篇 |
1970年 | 11篇 |
1969年 | 12篇 |
1967年 | 8篇 |
排序方式: 共有996条查询结果,搜索用时 15 毫秒
1.
E R Braverman 《Southern medical journal》1987,80(4):415-20, 425
This paper describes the history and basis of the Spiritual Inventory from its beginning. Initially, the Inventory took the form of a casual interview. The advantage of an interview is clinical judgment and the ability to diagnose the spirituality of the patient. Analysis of spiritual behavior is a useful clinical tool. This paper also includes a detailed explanation of the role of the rabbi-physician. 相似文献
2.
3.
Researchers suspected that the role-conflict between nurse and mother would exacerbate during war and a survey confirmed that this problem was real. A solution in the form of shelters for children was found, and nurses were able to function during the Gulf War with the knowledge that their children were safe and near. 相似文献
4.
5.
Very low infection rates (less than 3%) were obtained when Aedes aegypti mosquitoes ingested blood contained 5.8--6.5 log10 MLD50/0.02 ml African horse sickness virus (AHSV). When A. aegypti mosquitoes were inoculated intrathoracically with virus, however, high infection rates were achieved. Mosquitoes infected by inoculum failed to transmit virus to embryonated hens eggs by bite, and virus could not be detected in membrane or blood when inoculated mosquitoes were allowed to engorge on uninfected blood through a chick skin membrane. It was concluded that the mosquito A. aegypti is unlikely to be an effective vector of AHSV. 相似文献
6.
The most common causes of hyperthyroidism are Graves' disease, toxic nodular goiter, and iodine-induced hyperthyroidism. Hyperthyroidism can be treated medically with antithyroid drugs or radioactive iodine, or surgically. Multiple clinical factors must be weighed when choosing a treatment modality. All of the available forms of therapy have advantages and disadvantages, and treatment choices must be individualized. 相似文献
7.
The differential effects of thyroid and gonadal hormones on substance P content in the anterior pituitary of the prepubertal rat 总被引:1,自引:0,他引:1
The effects of thyroid and gonadal status on the content of substance P in the anterior pituitary (AP-SP) were examined in prepubertal rats. A sex difference in AP-SP is evident by age 50 days [males, 287 +/- 35 fmol/mg protein (mean +/- SE); females, 103 +/- 17; P less than 0.05], and this difference becomes greater by 75 days (males, 543 +/- 54; females, 146 +/- 11.5; P less than 0.01). Hypothyroidism was induced in male and female pups by giving lactating dams 0.1% methimazole (wt/vol) in their drinking water after parturition. There was a marked and significant increase in AP-SP in 21-day-old hypothyroid compared to euthyroid control pups. Male pups were made thyrotoxic by daily treatment with T4 (10 micrograms/rat, sc) from age 8 to 15 days. AP-SP was 4 times lower in the thyrotoxic than in the euthyroid pups (P less than 0.001). Rats ovariectomized at age 22 days and killed on day 35 revealed no change in AP-SP, in contrast to the rise in AP-SP in the ovariectomized adult rat. Female pups were treated with dihydrotestosterone (DHT; 50 micrograms/day) or testosterone (50 micrograms/day) from age 8-20 days. Neither androgen induced a change in AP-SP. Female pups which received estradiol (E2; 0.5 micrograms/day) or testosterone (75 micrograms/day) from age 8-20 days also had no change in AP-SP. As opposed to the lack of effect of E2 and DHT on AP-SP in female rats younger than 22 days, E2 (1 microgram/100 g BW daily) caused a decrease and DHT (100 micrograms/100 g BW daily) caused an increase in AP-SP in female rats treated from 22-35 days of age [E2, 91 +/- 6.9; DHT, 226 +/- 31 (P less than 0.05 vs. control for both); control, 154 +/- 13]. We conclude that the responsiveness of AP-SP to alterations in thyroid status is present at the youngest age studied. In contrast, the responsiveness of AP-SP to changes in the levels of gonadal steroids is absent in the infantile period and requires a maturational process that becomes evident during the juvenile state of sexual development. 相似文献
8.
S M Brown S E Brooks M L Mazow C W Avilla D E Braverman S T Greenhaw M E Green D L McCartney G C Tabin 《Journal of cataract and refractive surgery》1999,25(9):1245-1249
PURPOSE: To describe a cluster of cases of iatrogenic diplopia after cataract surgery that occurred in 1998, when hyaluronidase was unavailable for use in periocular anesthetic regimens. SETTING: The clinical practices of the authors. METHODS: This study comprised a retrospective chart review. RESULTS: Twenty-five cases of transient or permanent diplopia were reported. Of these, 13 eyes had retrobulbar and 10 had peribulbar injections; in 2 cases the injection technique was unknown. The inferior rectus was affected in 19 eyes; of these, 1 had a temporary palsy and 18 had permanent restriction. Temporary paresis developed in the lateral rectus in 5 cases and the superior rectus in 2. Eleven cases were submitted by 4 anterior segment surgeons, who collectively had a zero incidence of iatrogenic postoperative diplopia in the preceding 4 to 11 years of practice (approximately 6900 cases). CONCLUSION: Hyaluronidase may be more important than previously suspected in preventing anesthetic-related damage to the extraocular muscles. The inferior rectus muscle is particularly vulnerable, presumably because of the injection technique. 相似文献
9.
BACKGROUND AND DESIGN.--Many investigators have applied immunohistologic analysis to skin biopsy specimens to distinguish cutaneous T-cell lymphoma (CTCL) from benign inflammatory diseases, such as psoriasis and dermatitis, which can clinically mimic early-stage CTCL. We studied the number and distribution of epidermal cells labeled with various monoclonal antibodies in normal skin and in psoriatic, dermatitic, and CTCL lesions by the immunoperoxidase technique. RESULTS.--Extensive staining of keratinocytes (KCs) with HLA-DR was seen in 27 of 41 patients with CTCL, but in only one of 14 patients with psoriasis and zero of 10 patients with dermatitis. CD2+ and CD3+ cells were present in the middle and upper epidermis of CTCL lesions in much greater numbers than in normal, dermatitic, and psoriatic skin. The percent epidermal area covered by CD1+ cells in psoriatic lesions (1.13%) and dermatitic lesions (1.65%) was significantly lower than that found in CTCL lesions (3.60%). CONCLUSION.--Epidermal immunohistologic patterns using anti-CD1, anti-CD2, anti-CD3, and anti-HLA-DR antibodies have the potential to distinguish CTCL from psoriasis and dermatitis in clinically ambiguous cases. 相似文献
10.
Primary cutaneous anaplastic large cell lymphoma in a young girl 总被引:1,自引:0,他引:1