Dennis Wat, MD, obtained his undergraduate degree (MB BCh) in 1998 in Cardiff, UK. In 2007, he was awarded an MD from the University of Cardiff where he researched the impact of respiratory viruses in cystic fibrosis (CF). In 2009, he was appointed as Respiratory Consultant in the Adult CF Unit at Papworth Hospital, Cambridge, UK. In 2012, he moved to Liverpool, UK to join the respiratory community and Liverpool Adult CF services. Apart from CF, Dr. Wat has vast experience in the management of COPD, bronchiectasis, asthma and oxygen therapy in the management of chronic lung diseases. He has published widely in pulmonary medicine, including papers in peer-reviewed journals and book chapters. He is a principal investigator in a number of clinical trials.