1. Research Center for the Natural and Applied Sciences , University of Santo Tomas , España Manila , Philippines
2. The Graduate School , University of Santo Tomas , España Manila , Philippines
3. College of Teacher Education , Quirino State University , Quirino , Philippines
4. Hematology Division , Mariano Marcos Memorial Hospital and Medical Center , Batac , Ilocos Norte , Philippines
5. Benavides Cancer Institute , University of Santo Tomas Hospital , España Manila , Philippines
6. Department of Biochemistry, Faculty of Pharmacy , University of Santo Tomas , España Manila , Philippines
7. Department of Biological Sciences, College of Science , University of Santo Tomas , España Manila , Philippines