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- FALKEBORN, M, et al.
(författare)
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Validity of information on gynecological operations in the Swedish in-patient registry
- 1995
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Ingår i: Scandinavian journal of social medicine. - : SAGE Publications. - 0300-8037. ; 23:3, s. 220-224
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Tidskriftsartikel (refereegranskat)abstract
- In order to validate information held at the Swedish Inpatient Registry on oophorectomy and/or hysterectomy procedures, the register codes were compared with data from the medical records in a random sample of 1,338 women. Only 1% of these codes were missing but 5% were erroneous, which in most cases meant that the oophorectomy had been misclassified. The positive predictive value of operation codes was high, ranging from 86 to 100% of the registered events. The actual procedures among women registered with a code for hysterectomy with or without oophorectomy comprised hysterectomy alone in 47% of the women and hysterectomy with a bilateral or unilateral oophorectomy in 30% and 20%, respectively. The reliability of register codes for major gynecological surgical procedures is good, but when the code for hysterectomy is used, medical record data are needed to ascertain the ovarian status. Revised codes are therefore recommended.
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- HORLING, J, et al.
(författare)
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Detection and subsequent sequencing of Puumala virus from human specimens by PCR
- 1995
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Ingår i: Journal of clinical microbiology. - : American Society for Microbiology. - 0095-1137 .- 1098-660X. ; 33:2, s. 277-282
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Tidskriftsartikel (refereegranskat)abstract
- A sensitive method based on PCR was developed for the detection of Puumala virus (PUU) in human samples. The assay was found to be specific for PUU-like strains and distinguished between these and hantaviruses of other serotypes. The detection limit was found to be 10(-5) focus-forming units. Clinical samples were collected from patients with nephropathia epidemica in Sweden and western Russia. Five whole blood samples collected from patients in Russia with the acute phase of disease were found to be positive by the PCR. All samples were negative for PUU antigen when examined by enzyme-linked immunosorbent assay. Virus isolation on Vero E6 cells from several of the acute-phase samples, including the 5 PCR-positive samples, was not successful. The amplified samples were subjected to direct nucleic acid sequencing for confirmation of identity. The sequences differed from each other and were closely related to the Russian bank vole isolate CG-1820, thereby indicating the origin of nephropathia epidemica. The PCR was used for amplification and subsequent nucleotide sequencing of eight PUU-like isolates with different geographic origins. The Swedish strains were more closely related to the Finnish PUU prototype strain, Sotkamo, than to the Russian isolates. Interestingly, a Belgian isolate, CG-13891, differed markedly from all other PUU strains.
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- Juslin, Peter, et al.
(författare)
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Can overconfidence be used as an indicator of reconstructive rather than retrieval processes?
- 1995
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Ingår i: COGNITION. - : ELSEVIER SCIENCE BV. - 0010-0277. ; 54:1, s. 99-130
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Tidskriftsartikel (refereegranskat)abstract
- In a recent paper Wagenaar (1988) suggested that overconfidence can be used as an indicator of reconstructive processes which allow responses based on inference to be distinguished from responses based on retrieval. The ecological models (Bjorkman, in pr
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