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排序方式: 共有475条查询结果,搜索用时 15 毫秒
1.
Sequential contrast-enhanced MR imaging of the penis 总被引:1,自引:0,他引:1
2.
Genotype-phenotype correlation for nucleotide substitutions in the IgII- IgIII linker of FGFR2 总被引:6,自引:3,他引:3
3.
Horne G; Jamaludin A; Critchlow JD; Falconer DA; Newman MC; Oghoetuoma J; Pease EH; Lieberman BA 《Human reproduction (Oxford, England)》1998,13(11):3045-3048
Insemination with donor spermatozoa is an integral part of infertility
treatment. For the last 3 years in our unit, intrauterine insemination with
donor spermatozoa (IUID) has been used in preference to vaginal
insemination. In this retrospective study, patients were offered an initial
course of five single intrauterine inseminations with cryopreserved donor
spermatozoa and treatment was then reviewed. A total of 389 patients
received 1465 inseminations. In all, 1119 cycles were monitored using
luteinizing hormone serum analyses and 346 cycles using the urine home test
kits. The clinical pregnancy rate per insemination for the cycles monitored
by the serum assay was 18.0% (202/1119) compared with the urine cycles
(13.7%, 46/346) (P <05). The pregnancy loss rate was not significantly
different (14.4%, 29/202 and 21.7%, 10/46) (serum and urine cycles
respectively). The viable clinical pregnancy rate was significantly higher
(P <03) for the serum cycles than for the cycles using the urinary
monitoring (15.5%, 173/1119 and 10.4%, 36/346 respectively). The cycles
monitored by serum assay had a significantly higher cumulative viable
clinical pregnancy rate (P <0001) of 70.2% after nine inseminations
compared with the urine monitored cycles of 54.8%. The majority of patients
opted for the serum cycles, with a minority self-selecting the urine cycles
mainly for travelling convenience. The explanation for the significant
differences between the viable clinical pregnancy rates per insemination
and the cumulative viable clinical pregnancy rates may be due to the
sensitivity of the urine home test kit or the patients' interpretation of
the result.
相似文献
4.
目的 探讨盐酸喹那普利 (QuinaprilHydrochloride)治疗轻、中度原发性高血压的有效性和安全性。方法 全国 6家医院参加的一项多中心、随机、双盲、平行组间对照研究。结果 113例原发性高血压病人治疗 8周后 ,总有效率达 85 84% ,统计学有显著性差异。盐酸喹那普利副反应较轻 ,对肾脏、肝脏、造血系统和心脏未见有害作用。结论 盐酸喹那普利是一种安全、疗效好、副反应小的治疗轻、中度原发性高血压的有效药物。 相似文献
5.
Grigsby J Kaehny MM Sandberg EJ Schlenker RE Shaughnessy PW 《Health care financing review》1995,17(1):115-131
The use of telemedicine has recently undergone rapid growth and proliferation. Although the feasibility of many applications has been tested for nearly 30 years, data concerning the costs, effects, and effectiveness of telemedicine are limited. Consequently, the development of a strategy for coverage, payment, and utilization policy has been hindered. Telemedicine continues to expand, and pressure for policy development increases in the context of Federal budget cuts and major changes in health service financing. This article reviews the literature on the effects and medical effectiveness of telemedicine. It concludes with several recommendations for research, followed by a discussion of several specific questions, the answers to which might have a bearing on policy development. 相似文献
6.
There are fundamental problems with the calculation of radiation doses to the skeleton from internal emitters deposited in bone. Some of these include dose inhomogeneities, identity of cells at risk and their dynamics, changing deposition patterns of bone-seeking radionuclides with time after exposure, seemingly unique responses of the skeleton to each deposited radionuclide, the role of radioactive progeny produced by deposited emitters and their individual dynamics and effects, different responses of mammals of different ages at exposure to identical dosages, different responses to different chemical forms of a given radionuclide, and different responses to an identical dose from a given radionuclide at different dose-rates. This situation makes it necessary to choose some common dose parameter that will allow the overall effects of different radionuclides to be compared directly so that projected effects of each of them in humans can be estimated. For radiation protection purposes, it appears premature to abandon the concept of average skeletal dose (which appears to be a practical compromise for use) until an undelusive, non-artificial and uncontrived method of calculating absorbed dose to the appropriate cells in bone is developed that fulfills the requirement of equal cancer response for equal skeletal dose for all circumstances. 相似文献
7.
F. Mohr W. Hubmann W. Bender S. Hönicke Ch. Wahlheim R. Cohen C. Haslacher R. Schlenker P. Werther 《European archives of psychiatry and clinical neuroscience》1996,246(5):240-248
A German version of the Neurological Evaluation Scale (NES) was administered to 143 schizophrenic patients, 45 of them being severly chronic and disabled. Seventy-eight alcohol-dependent inpatients and 57 healthy volunteers were tested as control groups. Neurological soft signs (NSS) were rated with convincing agreement. Schizophrenic patients are more impaired on all scales than healthy controls. The chronic, severly disabled schizophrenic patients are more impaired compared with the main group of schizophrenic patients and both control groups. A significant patients and alcohol-dependent patients was only found for the subscale Motor Coordination. Compared with healthy controls the alcohol-dependent patients show a higher NES total score. The NES total score was related to the relative width of the third ventricle. Total score and subscales were correlated consistently with the level of cognitive functioning as measured by the Raven Standard Progressive Matrices and various neuropsychological tests presumably sensitive to dysfunctions of the prefrontal cortex. The NSS were related to positive as well as to negative symptoms, the correlations with negative symptoms being confined to items of Cognitive Disorganization. This close association of psychomotor and cognitive dysfunctions may be seen as related to the frequently discussed dysfunctions of the prefrontal cortex or the neurointegrative deficit postulated by Meehl. 相似文献
8.
This paper presents a conceptual analysis of access, quality, and cost containment incentives created by several current and potential Medicare reimbursement methodologies. The alternatives examined are methods used by health maintenance organizations (HMOs) and three options receiving national policy consideration: prospective per-visit and per-episode payment, and "bundling." The analysis found better incentives (from a policy perspective) for HMOs with integral home health units than for HMOs using outside contractors. Of the other options, per-episode payment appeared most promising, but requires accurate case mix adjustments. All approaches also require quality assurance tailored to reimbursement incentives. Topics for further research and demonstrations are suggested. 相似文献
9.
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