| Literature DB >> 14164569 |
Abstract
Keywords: CLINICAL RESEARCH; ELECTROCARDIOGRAPHY; FETAL HEART; MATERNAL-FETAL EXCHANGE; PREGNANCY
Mesh:
Year: 1964 PMID: 14164569 DOI: 10.1007/BF02474362
Source DB: PubMed Journal: Med Electron Biol Eng ISSN: 0368-9271