[1] Texas Tech Univ, Hlth Sci Ctr, Dept Internal Med, El Paso, TX USA
[2] East Carolina Univ, Vidant Med Ctr, Dept Internal Med, Greenville, NC USA
[3] Uzhgorod Natl Univ, Dept Med, Uzhgorod, Ukraine
[4] Mercy Catholic Med Ctr, Dept Internal Med, Darby, PA USA
[5] Mercy Catholic Med Ctr, Dept Internal Med, 1500 Lansdowne Ave, Darby, PA 19023 USA