1. ACOS/Research and Development Service, Nuclear Medicine & Molecular Imaging Service, Physical Medicine & Rehabilitation Service, Audiology and Speech Pathology Service, and Psychiatry Service, VA Caribbean Healthcare System, San Juan, PR 00921, USA
2. Department of Molecular Biology, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00931, USA
3. Radiological Sciences Department, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00921, USA
4. Charleston Health Equity and Rural Outreach Innovation Center, Nursing and Patient Care Services, Ralph H. Johnson VA Medical Center, Charleston, SC 29401, USA
5. Department of Biomedical Sciences, San Juan Bautista School of Medicine, Caguas, PR 00725, USA