The University of Maryland Medical System is seeking to recover hundreds of thousands of dollars paid to disgraced former Baltimore Mayor Catherine Pugh for her “Healthy Holly” books, top officials of the hospital network testified Thursday in Annapolis. “We have recovered $100,000 of the $500,000,” James C. “Chip” DiPaula Jr., the new chairman of the system’s board, told the House of Delegates’ Health and Government Operations Committee. “We are working with the U.S. prosecutors to recover the balance.” Pugh, who resigned as mayor last spring as the book scandal unfolded, has since pleaded guilty to conspiracy and tax evasion charges...