American Society of Echocardiography minimum standards for the cardiac sonographer: a position paper.
Bierig
S Michelle
SM
Ehler
Donna
D
Knoll
Margaret L
ML
Waggoner
Alan D
AD
D003406:Credentialing / Q000592:standards*; D004452:Echocardiography / Q000592:standards*; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians' / Q000592:standards*; D011361:Professional Competence; D011785:Quality Assurance, Health Care / Q000592:standards*; D012955:Societies, Medical / Q000592:standards*; D014481:United States