title: Comparison of single-plane and biplane volume determination by two-dimensional echocardiography. 1. Asymmetric model hearts.
mesh_terms: D002306:Cardiac Volume; D004452:Echocardiography; D006321:Heart / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006801:Humans; D008961:Models, Structural; D011859:Radiography; D012826:Silicone Elastomers; D013318:Stroke Volume
chemical_list: D012826:Silicone Elastomers