title: Reply to the letter regarding the article "Growth differentiation factor-15 in Takotsubo cardiomyopathy: diagnostic and prognostic value".
authors.affiliation: University of Leipzig, Heart Center, Department of Internal Medicine/Cardiology, Strümpellstr. 39, 04289 Leipzig, Germany. Electronic address: thomas.stiermaier@gmail.com.
authors.forename: Thomas
authors.initials: T
authors.lastname: Stiermaier
authors.affiliation: University of Leipzig, Heart Center, Department of Internal Medicine/Cardiology, Strümpellstr. 39, 04289 Leipzig, Germany; University of Lübeck, Medical Clinic II, Department of Cardiology, Angiology, and Intensive Care Medicine, Ratzeburger Allee 160, 23538 Lübeck, Germany.
authors.forename: Ingo
authors.initials: I
authors.lastname: Eitel
mesh_terms: D005260:Female; D055436:Growth Differentiation Factor 15 / Q000097:blood*; D006801:Humans; D008297:Male; D054549:Takotsubo Cardiomyopathy / Q000097:blood* / Q000175:diagnosis*
chemical_list: D055436:Growth Differentiation Factor 15
keywords: Apical ballooning syndrome; GDF-15; Prognosis; Stress cardiomyopathy; Takotsubo