@misc{oai:tsukuba.repo.nii.ac.jp:00008892, author = {Kuga, Keisuke}, month = {}, note = {1987, 【要旨】, Offprint: Originally published in: American journal of cardiology, v. 61, p. 361-366, 1988}, title = {Assessment by autonomic blockade of age-related changes of the sinus node function and autonomic regulation in sick sinus syndrome}, year = {1988} }