title: Effect of transducer placement on echocardiographic mitral valve motion.
mesh_terms: D004452:Echocardiography / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D008943:Mitral Valve / Q000503:physiopathology*; D008945:Mitral Valve Prolapse / Q000175:diagnosis* / Q000503:physiopathology; D014159:Transducers