Re: whatever happened to these characters?
We did see Dr. Pulaski pop up on Terok Nor during the Cardassian occupation in Double Helix: Vectors, and according to Memory Beta, she's at Riker and Troi's wedding in A Time for War, A Time for Peace.
IIRC, she was featured as CMO of the U.S.S. Repulse
in Peter David's TNG: Vendetta
"Every line of serious work that I have written since 1936 has been written, directly or indirectly, against totalitarianism and for democratic Socialism, as I understand it." - George Orwell, 1946