2D-echocardiography vs cardiac MRI strain: a prospective cohort study in patients with HER2-positive breast cancer undergoing trastuzumab.

"Declarations Ethics approval and consent to participateThe study was approved by the institutional review board of the hospital (WOAC Albert Schweitzer Hospital), and conducted according with the Declaration of Helsinki. All participants provided written informed consent for their participation in the study, and for the study-related measurements. Consent for publicationConsent for publication was obtained from the included participants. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This study was funded by the Promotiefonds of the Albert Schweitzer Hospital, Dordrecht, The Netherlands. The funding source had no involvement in the study design, data collection, analysis and interpretation of data, in the writing of the manuscript, and in the decision to submit the article for publication."