The value of the ultrasonic Doppler method and apexcardiography as reference tracings in phonocardiography
Year: 1972
Type: article
Study design: Observational Study
Source: American Heart Journal
Institution: University of Pennsylvania
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: closed
OpenAlex ID: W2047802154
