Kan Zen

Very low frequency power of heart rate variability is a powerful predictor of clinical prognosis in patients with congestive heart failure.

Shingo Kawasaki, Tatsuya Kawasaki, Tadaaki Kamitani, 2004, Circulation journal : official journal of the Japanese Circulation Society.

'Gadolinium' as an alternative to iodinated contrast media for X-ray angiography in patients with severe allergy.

H. Matsubara, T. Sawada, A. Azuma, 2005, Circulation journal : official journal of the Japanese Circulation Society.