Summary Box: WebMD CEO Gattinella resigns
EXECUTIVE CHANGE: Health information services provider WebMD Health Corp. said Tuesday that CEO Wayne T. Gattinella has resigned. Chief Financial Officer Anthon Vuolo will temporarily replace him while the company looks for a permanent successor.
NOT FOR SALE: WebMD said it has stopped talking to potential acquirers about a sale of the company.
BUSINESS WEAKER: The New York company also said it expects 2012 earnings to be "significantly lower" than 2011 results as it faces tough competition and its drug company customers deal with patent expirations.