 Complete the following phrase:  Upon its introduction, giant slalom briefly displaced the combined event at the world championships; it was absent in 1950 and 1952. The combined returned in 1954 in Åre, Sweden, but as a paper race, using the results of the three events downhill, giant slalom, and slalom, a format used through 1980. The combined returned as a stand-alone event at the world championships in 