CREATE TABLE table_45908 ("Winner" CLOB, "Country" CLOB, "Winter Olympics" CLOB, "FIS Nordic World Ski Championships" CLOB, "Holmenkollen" CLOB)

Which Country has a FIS Nordic World Ski Championships of 1948, 1950?
SELECT "Country" FROM table_45908 WHERE "FIS Nordic World Ski Championships" = '1948, 1950'
SELECT "Country" FROM "table_45908" WHERE "FIS Nordic World Ski Championships" = '1948, 1950'