High prevalence of AF found among cross-country skiers
Wednesday, February 10, 2010 - 07:49
in Earth & Climate
Next month, in the Norwegian town of Rena, 12,000 elite cross-country skiers will line up for this year's Birkebeiner ski marathon, an annual endurance race which will take them through 54 kilometres of snow-covered countryside to the winter sports resort of Lillehammer.