Here is contact info for two physicians in Japan who are listed on the Pressor website:

Mitsuhide Naruse, MD, PhD
Department of Endocrinology, Metabolism, and Hypertension
 Clinical Research Institute
 National Hospital Organization Kyoto Medical Center
 1-1 Mukaihata Cho, Fukakusa, Fushimi-Ku, Kyoto,
 612-8555, Japan
 T: 81(75) 641 9161 ext. 6134
 F: 81(75) 641-9254
 [email protected]

Akiyo Tanabe, MD, PhD
 Department of Medicine II
 Tokyo Women's Medical University,
 8-1, Kawada-cho, Shinjuku-ku,
 Tokyo, 162-8666, Japan
 T/F: 81-3-3359-5559
 [email protected]