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排序方式: 共有1353条查询结果,搜索用时 15 毫秒
91.
S Clement A Pickering G Rowlands K Thiru B Candy S de Lusignan 《The British journal of general practice》2000,50(457):651-652
We describe a conceptual framework that we have developed for evaluating primary care research networks. The framework includes objectives, process indicators, and outcome indicators. We propose the framework as a provisional model that we hope will promote further research and debate. 相似文献
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A 2-year-old girl with cyanotic congenital heart disease needed to undergo gastrostomy. To avoid the use of general anesthesia, a percutaneous gastrostomy was performed as an interventional radiologic procedure with the patient under sedation and with the use of local anesthesia. The placement of a nasogastrocutaneous guide wire under fluoroscopic guidance provided a stable tract for placement of the gastrostomy tube. 相似文献
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Treatment of immature female Sprague-Dawley rats with 17 beta-estradiol (5 micrograms/animal) resulted in an increase in uterine epidermal growth factor (EGF) receptor binding activity. Moreover, in a separate study it was also shown that 17 beta-estradiol increased steady-state levels of rat uterine EGF receptor mRNA as determined by Northern analysis. In contrast, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) caused a dose-response decrease in constitutive rat uterine EGF receptor binding activity and this was paralleled by a decrease in steady-state levels of uterine EGF receptor mRNA. Cotreatment of the animals with both TCDD (16 nmol/kg) and 17 beta-estradiol (5 micrograms/rat) gave results which showed that TCDD significantly inhibited the estrogen-induced increases in rat uterine EGF receptor binding activity and EGF receptor mRNA levels. These results further extend the range of antiestrogenic properties of TCDD and suggest that the inhibition of growth factor expression may play a role in the growth-inhibiting properties of TCDD in estrogen-responsive tissues or cells. 相似文献
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A H Choudhri P C Rowlands C J Barber J Johnson J M Stevens 《The British journal of radiology》1989,62(735):253-255
Sixty-five patients with stable low back pain had their lumbar myelography performed as outpatients, staying in the department for 1 h after the examination. The incidence of post-myelogram headache was similar to that reported for inpatients. No serious after-effects occurred in the study group. The vast majority of patients preferred to be at home following the study. It is concluded that outpatient myelography is safe, less expensive and preferred by the patients. 相似文献
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