J. Wahrendorf

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9295 smears, obtained from women attending three gynaecological hospitals for routine screening, were examined for human papillomavirus (HPV) types 6 and 11 and HPV 16 and 18 infections by filter in-situ hybridisation. The data were compared with cytological findings. In women with normal cytological smears HPV infection was identified in about 10% of women(More)
BACKGROUND The aim of this study was to examine the feasibility of performing a cohort study on health risks from occupational exposure to radiofrequency electromagnetic fields (RF-EMF) in Germany. METHODS A set of criteria was developed to evaluate the feasibility of such a cohort study. The criteria aimed at conditions of exposure and exposure(More)
A randomised double-blind intervention trial was carried out in Huixian, Henan Province, People's Republic of China, to determine whether combined treatment with retinol, riboflavine, and zinc could lower the prevalence of precancerous lesions of the oesophagus. 610 subjects in the age group 35-64 were randomised to receive once a week the active treatment(More)
Virus infections have been thought to be involved in the development of childhood leukaemia. In order to address this issue we determined, in a case-control study, the prevalence of antibodies to viruses infecting blood or bone-marrow cells [Epstein-Barr virsus (EBV), human herpes virus type 6 (HHV-6), parvovirus B19] as well as to the human virus known for(More)
Ambient air is a complex mixture containing a variety of substances, some of which are known to be carcinogenic. To develop a homogeneous approach for regulating the emission of these compounds, their individual carcinogenic potential needs to be placed on a comparable scale. The unit risk may be considered as an appropriate measure that condensates(More)
Young people (15-26 years) were selected from households in a population in China at high risk of oesophageal cancer on the basis of whether a case of oesophageal cancer had (166 participants) or had not (372 participants) occurred in a first-degree relative. In an endoscopic survey 43.5% of the male subjects and 35.9% of the female subjects showed(More)
This study describes the effect of intratracheal instillations (2 X 5 mg) of benzo(a)pyrene (B(a)P) on lung carcinogenesis in rats which had previously inhaled different levels of 239 plutonium oxide (220, 630, 6300 Bq, initial lung burden). Survival decreased with increasing PuO2 exposure and additional B(a)P exposure. The incidence of malignant lung(More)
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