title: PR interval and heart size in the humpback whale.
authors: R H
authors: RH
authors: Karas
authors: A
authors: A
authors: Karas
mesh_terms: D000818:Animals; D001835:Body Weight; D004562:Electrocardiography; D006321:Heart / Q000033:anatomy & histology*; D014907:Whales / Q000033:anatomy & histology / Q000502:physiology*