Cesar Carvalho de Freitas

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The authors present the results of the psychosocial outcomes of 45 patients undergoing excimer laser photorefractive keratectomy (PRK). The patients were evaluated by means of self-report questionnaires preoperatively and 6 months after surgery to determine the effect of uncorrected vision change on the patients quality of life. The measurements include the(More)
This paper presents a comparative description of the starch distribution in the anthers, microspores and pollen grains of Aechmea recurvata, Dyckia racinae and Tillandsia aeranthos. Flowers at different stages of development were processed according to plant microtechniques for observation by light microscope. Ten stages of embryological development were(More)
BACKGROUND Globally, diarrhea kills almost 1,500 children daily. In diagnostics, molecular methods are replacing traditional assays. We aimed to investigate enteropathogens in children with and without diarrhea in Luanda, the capital of Angola. METHODS 194 stool samples from 98 children with acute diarrhea and 96 children without diarrhea were(More)
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