Beginning early in the nineteen‐sixties the excellence of the work in pulmonary and cystic fibrosis research done at the Paediatrics Department TG attracted interest from around the world and cystic fibrosis (CF) researchers from everywhere began to visit Denmark to learn from Doctor Erhard Winge Flensborg. I joined that group of visitors in 1966 when I wrote to Doctor Flensborg for permission to visit his department. Like all the others, I was welcomed. The intellectual stimulation there surrounded by the sparkling hospitality of Erhard and Inga Flensborg and the doctors studying at Paediatric Department TG was so helpful that I have eagerly returned on many occasions over these past 16 years, as have others who have made a first visit to Paediatric Department TG. For each visitor a first visit was habit formin