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Major Customers/Suppliers	12 Months Ended
Major Customers/Suppliers	Mar. 31, 2013
Major Customers/Suppliers
Major Customers/Suppliers	7. Major Customers/Suppliers We depend on sales that are generated from hospitals’ ongoing usage of AEM surgical instruments. In fiscal year 2013, we generated sales from over 350 hospitals that have changed to AEM products, but no hospital customer contributed more than 3% to the total sales. We generate service revenue from our Intuitive Surgical, Inc. and Boston Scientific Corporation agreements. We have a relationship with New Deantronics, Inc. who accounted for approximately 13% of our purchases in fiscal year 2013.