1. Halberg F, Cornélissen G, Otsuka K, Watanabe Y, Katinas GS, Burioka N, Delyukov A, Gorgo Y, Zhao ZY, Weydahl A, Sothern RB, Siegelova J, Fiser B, Dusek J, Syutkina EV, Perfetto F, Tarquini R, Singh RB, Rhees B, Lofstrom D, Lofstrom P, Johnson PWC, Schwartzkopff O. International BIOCOS Study Group. Cross-spectrally coherent ~10.5- and 21-year biological and physical cycles, magnetic storms and myocardial infarctions. Neuroendocrinol Lett 2000;21:233–58.
2. Cornélissen G, Halberg F, Breus T, Syutkina EV, Baevsky R, Weydahl A, Watanabe Y, Otsuka K, Siegelova J, Fiser B, Bakken EE. Non-photic solar associations of heart rate variability and myocardial infarction. JASTP 2002;64:707–20.
3. Otsuka K, editor. Proceedings of the 1st Int Symp Workshop on Circadian Rhythms and Clinical Chronotherapy, Tokyo, 11 Nov 2000. Biomed Pharmacother 2001;55(Suppl 1):7s–190s.
4. Otsuka K, editor. Proceedings of the 2nd Int Symp Workshop on Circadian Rhythms and Clinical Chronotherapy, Tokyo, 17 Nov 2001. Biomed Pharmacother 2002;56(Suppl 2):231s–328s.
5. Otsuka K, editor. Proceedings of the 3rd Int Symp Workshop on Circadian Rhythms and Clinical Chronotherapy, Tokyo, 9 Nov 2002. Biomed Pharmacother 2003;57(Suppl 1):1s–198s.