Petar Stamatov Valchanov is a Chief assistant professor in the department of anatomy and cell biology at the Medical University of Varna, Bulgaria. He graduated from the Medical University of Varna, Bulgaria in 2003 and worked for twelve years as emergency internal physician. From 2016, he has worked in the department of anatomy and cell biology, where he leads dissections and histological seminars with Medical and Dental Medical program students. His scientific interests are primarily in the areas of medical 3D printing, 3D bioprinting, cell biology, regenerative medicine, anthropomorphic phantoms, imaging phantoms, bio scaffolds, and organ-on-chip devices. He is a member of the Bulgarian Medical Association and the Bulgarian Anatomical Society.