Discussion Summarizing our findings, data suggest that European ethnicity is a risk factor for cutaneous melanoma, with a strong trend toward greater risk associated with the number of European grandparents.
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Ethnicity and cutaneous melanoma in the city of Sao Paulo, Brazil: a case-control study.
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The sentences
The first approach (analyzing 14 European countries as a set) and second approach (analyzing 4 southern European countries as a set) showed a trend, with a strong gradient, toward an association with the number of grandparents.