Gold medalist Norway's Marit Bjoergen (C), silver medalist Finland's Krista Parmakoski (L) and bronze medalist Sweden's Stina Nilsson pose for photos during medal ceremony for ladies' 30km mass start classic of cross-country skiing at the closing ceremony for the 2018 PyeongChang Winter Olympic Games at PyeongChang Olympic Stadium, PyeongChang, South Korea, Feb. 25, 2018. (Xinhua/Wang Song)