Research paper

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  • Zhivko Yovchev

    Association between rhythm-conduction disorders and COVID-19 infection

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  • Hristo S. Milev

    Evaluation of Ki-67 index in breast cancer cases with intratumor heterogeneity

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  • Georgi Dimitrov

    A prospective study of age-related differences in modifiable risk factors, stroke subtype, and functional outcome in young and middle-aged patients with first-ever ischemic stroke

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