[A microanatomical study of sino-atrial node and its blood supply (author's transl)].
D000328:Adult; D000368:Aged; D001158:Arteries / Q000033:anatomy & histology; D017023:Coronary Angiography; D006801:Humans; D008875:Middle Aged; D012849:Sinoatrial Node / Q000033:anatomy & histology*