Prasanna Ramesh 2021. Usage of E-Polytetrafluoroethylene (e-PTFE) Membrane for Managing Trabeculectomy Flap- Related Over-Filtration Due to Unavailability of Scleral Patch Graft during Nation-Wide Lockdown. Global Journal of Medical Research. 21, F7 (May 2021), 1–11. DOI:https://doi.org/10.34257/GJMRFVOL21IS7PG1.