IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-10-37398 Original Research Paper COMPARATIVE STUDY FOR BETTER SCREENING METHODS IN BLOOD BANK OF A TERTIARY CARE HOSPITAL FOR VIRAL MARKER DETECTION VIA RAPID CARD OR ELISA Kumar Dr. Vidhu Gill Dr. Lalit Chaurasia Dr. October 2021 10 10 01 02