CREATE TABLE table_23995075_2 (teams_that_can_still_qualify VARCHAR(255), teams_that_have_secured_qualification VARCHAR(255), teams_started VARCHAR(255))
How many teams can still qualify when there are 0 teams that have secured qualification and 52 teams started?
    
SQL: SELECT teams_that_can_still_qualify FROM table_23995075_2 WHERE teams_that_have_secured_qualification = "0" AND teams_started = "52"