1 Department of Medicine, Greater Los Angeles VA Healthcare Center and Jonsson Comprehensive Cancer Center of the UCLA Medical Center, Los Angeles, CA, USA.
2 Laboratory of Biochemistry, Department of Biochemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Japan.
3 Department of Medicine, Greater Los Angeles VA Healthcare Center and Jonsson Comprehensive Cancer Center of the UCLA Medical Center, Los Angeles, CA, USA. alan.lichtenstein@med.va.gov.
4 Laboratory of Biochemistry, Department of Biochemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Japan. alan.lichtenstein@med.va.gov.