[A DEVICE FOR THE REGISTRATION OF ESOPHAGEAL PHONOCARDIOGRAPHY].
D004864:Equipment and Supplies; D004947:Esophagus; D006801:Humans; D010701:Phonocardiography
EQUIPMENT AND SUPPLIES; ESOPHAGUS; PHONOCARDIOGRAPHY
PRYSTRIUI DLIA REIESTRATSIUI STRAVOKHODNOUI FONOKARDIOHRAMI.