@BetVam Hier zult u al veel uit leren ;-) 
https://t.co/eeAcJ9SlXO
@BetVam Here you will learn a lot from ;-)
https://t.co/eeAcJ9SlXO
Harry Spoelstra MD PhD CardioVascular Surgeon, Visiting Prof, special interests: Universe/Our Galaxy, Nature/Weather, Stratosphere/PolarVortex, Covid19
Harry Spoelstra MD PhD Cardiovascular Surgeon, Visiting Professor, special interests: Universe / Our Galaxy, Nature / Weather, Stratosphere / Polar Vortex, Covid19