DEERFIELD, Ill., 2017-May-17 — /EPR Retail News/ — Walgreens Boots Alliance, Inc. (Nasdaq: WBA) announced today ( May 16, 2017) that Executive Vice Chairman and CEO Stefano Pessina will participate in a fireside chat at the 2017 UBS Global Healthcare Conference at the Grand Hyatt in New York City on Tuesday, 23 May at 10:30…