Good Evening Anna;
Dad's Cancer Doctors office called today out of the blue. He wants to see him this Thursday. He wasn't due to go see him till the 20th of next month.
This could be as simple an explanation as the doctor has a conference, vacation or seminar to attend on that date.
We don't know what's going on.
Why not give them a call back and ask why the date was moved forward?
Take care;
Kevin