The U.S. is asking Novartis AG to provide records of about 80,000 “sham” events in which the government says doctors were wined and dined so they would prescribe the company’s cardiovascular drugs to their patients. The Swiss drugmaker and the Manhattan U.S. Attorney are engaged in a whistle-blower lawsuit that alleges Novartis provided illegal kickbacks to health-care providers through bogus educational programs at high-end restaurants and sports bars where the drugs were barely discussed.