Gold Medal (Invention & Research exhibition) August 20, 2014 Comments are off Posted in:Thilakavathy Karuppiah See more Prev:Silver Medal (Invention, Research and Innovation Exhibition) Back: All Awards Next:1st Prize Oral Presentation. Subretinal transplantation with human umbilical cord-derived mesenchymal stem. 2nd conjoint (MOH-UKM-USM-UM) Ophthalmology Scientific Conference 2012 ‘ Retina: A Paradigm Shift’, Sunway Pyramid Convention Center, Selangor, Malaysia.