UPDATE ON WHITNEY HOUSTON'S DAUGHTER'S HEALTH: Bobbi Kristina found unconscious in bathtub - revived & breathing again

Doctors have now stabilized her breathing, and we're told she is in ICU.
Still unclear why Bobbi fell unconscious. We're told a friend made the call to 911 from Bobbi's house.
The circumstances are especially eerie -- Whitney died in a bathtub at the Beverly Hilton on February.