About Kanda, K.
About College of Medical Care, Technology Gunma University
About Tsuchiya, J.
About College of Medical Care, Technology Gunma University
About Seto, M.
About College of Medical Care, Technology Gunma University
About Ohnaka, T.
About College of Medical Care, Technology Gunma University
About Tochihara, Y.
About College of Medical Care, Technology Gunma University
About Japanese Journal of Hygiene