29 Oct PERF 2020 Annual Appeal
PERF is a small non-profit foundation entirely supported by volunteers. PERF has extremely low overhead (less than 10% over the...
PERF is a small non-profit foundation entirely supported by volunteers. PERF has extremely low overhead (less than 10% over the...
Several years ago, a $6,000 gift to PERF led to the purchase of an oximeter, which led to the discovery...