Burnev, Martin, University hospital `St. Anna` Varna
Burnev, Martin, University hospital `St. Anna` Varna (Bulgaria)
Burulianova, I., Medical University of Varna
Burulianova, I. S., Medical University of Varna
Burulianova, Irina, Medical University of Varna
Burykh, M. P.
Buttigieg, George Gregory, University of Malta

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