Nippon Rinsho 1995 Jan;53(1):28-33.
[Isopotential map]
Ichihara Y,
Aichi Prefectural Center for Disease Prevention and Health Promotion.
Nippon Rinsho 1995 Jan;53(1):56-60.
[Departure map]
Ikeda K,
First Department of Internal Medicine, Yamagata University School of
Medicine.