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The locus for autosomal dominant ataxia with a diagnosis of olivo-ponto-cerebellar atrophy at autopsy has been previously assigned to chromosome 6p. However, evidence for two alternative locations has been reported. We have recently described a large potential founder-effect population of such patients in the Holguin province of Cuba. With an estimated(More)
BACKGROUND AND AIMS Diabetic retinopathy is the leading cause of blindness in adults in Western countries. There are few studies about this microvascular complication in the Portuguese population. The aim of the present study is to establish the relationship between diabetic retinopathy, risk factors and associated conditions, in a group of patients with(More)
A survey for the prevalence, geographical distribution and clinical manifestations of onchocerciasis was conducted on the Island of Bioko (formerly Fernando Póo), Equatorial Guinea, between 1987-89. The whole population (1799 inhabitants) of thirteen villages distributed around the island was surveyed. Identification data, physical examination and Snellen(More)
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