During the second season of Star Trek: The Next Generation, what exactly was Dr. Beverly Crusher's position within Starfleet Medical and what do we know regarding her accomplishments or chosen area of medical research/application during this time?
From "The Child":
WESLEY: It's going to be hard leaving the Enterprise.
PICARD: Mixed feelings for all of us. It's always difficult leaving any ship, just as it was for your mother when she left to become head of Starfleet Medical.
She left to become head of Starfleet Medical. We don't know much about how she spent her time there, what research she pursued, or anything of that sort, but one can presume it was mainly administrative duties. We do know that she at least briefly worked with Commander Hutchinson:
From "Starship Mine":
HUTCH: Beverly. Lovely as ever. How do you manage it?
CRUSHER: It's good to see you again.
HUTCH: It's been far too long. What is it, four years? Now I want to hear everything that happened after you left Starfleet Medical.