A new search warrant reportedly shows that Prince saw several doctors in the lead up to his death.
An investigation was opened after the 57-year-old singer was found dead in a lift at his home last month.
A cause of death has still not been announced.
The search warrant suggests that Dr. Michael Todd Schulemberg went to Prince's house to drop off the results of recent medical tests.
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His management team were also in touch with addiction specialist, Dr. Howard Kornfeld, the day before he died.
Dr. Kornfield sent his son Andrew to check on Prince but he was already unconscious when Andrew arrived.
