1,721,478 research outputs found
Survival of children with malignant germ cell, trophoblastic and other gonadal tumours in Europe
No full textNasal cancers and occupational exposures: A case-control study [Studio caso controllo sui tumori nasali e le esposizioni professionali]
No full textA case-control study of malignant epithelial neoplasms of the nose and sinuses and occupational exposures was conducted in Milan. Cases were patients admitted in the years 1982-85 at the Head and Neck Oncology Department of the National Institute for the Study and Treatment of Cancer. Controls were subjects admitted in the same years, with diagnoses of malignant tumour of nasopharynx, thyroid and salivary glands. The occupational history was derived from hospital records. The study included 53 cases and 217 controls. Three cases and no controls had worked in the leather industry; the same finding was observed for the wood industry. A significant increase in risk appeared to be associated to work in other sectors, namely metal industry (RR: 4.5; 95% conf. int.: 1.4-14.2), the mining and construction industry (RR: 5.3; 1.9-15.0), the textile industry (RR: 2.9; 1.0-8.6), and agriculture (RR: 3.3; 1.3-8.3)
Variations in survival of patients with head and neck cancer in Europe by the site of origin of the tumours.
No full textcancer survival - head and neck cance
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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