AUTHOR CONTRIBUTIONS
Jan Helgerud and Jan Hoff conceived and designed the study. Iben Krogsæter conducted the experiments. Iben Krogsæter, Jan Hoff, Eivind Wang, and Mathias Forsberg Brobakken analyzed the data. Mathias Forsberg Brobakken and Eivind Wang wrote the manuscript. All authors critically read, revised, and approved the manuscript.