Trimetazidine in heart failure with preserved ejection fraction: a randomized controlled cross‐over trial oleh Arno A. van deBovenkamp, Kiki T. J. Geurkink, Frank T.P. Oosterveer, Frances S. deMan, Wouter E.M. Kok, Patrick N.A. Bronzwaer, Cor P. Allaart, Aart J. Nederveen, Albert C. vanRossum, Adrianus J. Bakermans, M. Louis Handoko