Authors
Thoracic Surgery Clinic, UMHAT Kaspela – Plovdiv, Bulgaria
Department of Cardiovascular Surgery, Medical University of Plovdiv –, Bulgaria
D. Markov
Department of Clinical Pathology, UMHAT Pulmed – Plovdiv, Bulgaria
Department of General and Clinical Pathology, Medical University of Plovdiv –, Bulgaria
K. Bechev
Department of Neurosurgery, UMHAT Pulmed – Plovdiv, Bulgaria
Department of Anatomy and Histology, Medical University of Plovdiv –, Bulgaria