Hanna Huopio and me got to know Mark and Karen within the European network for hyperinsulinism in the 90’s. Mark’s warm and open personality quickly enabled us shy Finns to become a part of the community. It was always a great joy to meet Mark. Besides the science, we had lots of fun moments around the world (like in Mexico during the IDF meeting in 2000, image attached).
We are shocked by the loss and miss him badly. Our hearts are with Karen and the children at this difficult time.
Timo and Hanna