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He received financial support for studies from Medtronic Europe SARL (Meerbusch, Germany).Doris Lenartz and Juergen K. Mai received financial assistance for travel to congresses from Medtronic Europe SARL. Mohammad Maarouf has occasionally received honoraria from Medtronic Europe SARL for lecturing at conferences and consulting. Volker Sturm disclosed financial support for studies and travel to congresses, and lecture fees from Medtronic Europe SARL and Advanced Neuromodulation Systems INC. He is also a co-holder of patents on desynchronized brain stimulation and shareholder of ANM-GmbH Juelich, a company that intends to develop new stimulators.The remaining authors declare no conflict of interest.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}