R S Egerman1, D S Emerson. Show Affiliations » 1. University of Tennessee, Memphis 38103, USA.
Abstract
Mesh: See more » FemaleFetusHumansPregnancyUltrasonography, PrenatalYawning
Year: 1996 PMID: 8890101 DOI: 10.1056/NEJM199611143352005
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245