Modern Healthcare's annual Survey of Executive Opinions on Purchasing is now open for participation. The survey, in its second year, seeks information and opinion from healthcare supply-chain leaders on what they consider the most important issues they are facing today. It gives special attention to provider relationships with group purchasing organizations and outside vendors.The deadline is July 25. Submissions will be kept confidential and analyzed only in the aggregate. The data will be used to help illustrate two feature stories written by Modern Healthcare reporters. The features are set to appear in the Aug. 18 and Sept. 1 issues of Modern Healthcare and online. Click here to participate.