TIGINYANU, Ion, SHONTYA, Viktor, RAILEAN, Sergey. Preface. In: IFMBE Proceedings: . 4th International Conference on Nanotechnologies and Biomedical Engineering, Ed. 4, 18-21 septembrie 2019, Chişinău. Switzerland: Springer Nature Switzerland AG, 2020, Ediția 4, Vol.77, p. 0. ISBN 978-303031865-9. ISSN 16800737.