1. Computational Science, The University of Texas at El Paso , El Paso , TX 79968 , USA
2. Department of Pharmacy Practice , The University of Texas at El Paso , El Paso , TX 79968 , USA
3. Bioinformatics and Computational Science , University of Texas at El Paso , El Paso , TX 79968 , USA
4. Department of Mathematical Sciences , University of Texas at El Paso , El Paso , TX 79968 , USA