MADISON, Wis. (AP) — University of Wisconsin-Madison officials are debating pushing recruiting drives for fraternities and sororities back into the fall semester or eliminating them entirely. The university is reviewing other schools' Greek recruiting practices and will issue a report by the end of May. One of the school's largest fraternities tells the Wisconsin State Journal that any changes could threaten the groups' existence. Fraternities now get most members during the fall of their freshman year. Other colleges are regulating Greek recruitment in response to student deaths from heavy drinking during the pledge period. UW-Madison officials say the report isn't the result of any deaths or tragedies, and that it was simply time to look at the practice. The school has 16 fraternities and 10 sororities with houses.