BCN Medical Writing is run by Matías Rey Carrizo, Ph.D. in medicinal chemistry based in Barcelona. He has been working in science since 2010 and publishing high-quality articles since 2015. Matías has written, edited, or proofread more than 100 scientific articles in diverse fields, such as respiratory diseases, cognitive disorders, diabetes-related diseases, and oncology, among others. Matías is a member of the European Medical Writers Association and a member of the executive committee of the Spanish Medical Writers Association. He is also a BELS-certified Editor in the Life Sciences.