"echocardiography"^^ . "100781743"@en-us . . "a noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart"@en-us . . "echocardiography"@en-us . "100832306"^^ . . . . "00832306-n"^^ . . . . "0"^^ . . "0"^^ .