Over the past 43 years, Putnam City students, teachers and families have raised more than $3.6 million to combat cancer.
PC Schools made a significant donation to cancer research for the 42nd consecutive year.
OMRF opened its doors for 17 elementary-school scientists on Tuesday.
In all, PC schools have raised more than $3.4 million for OMRF.
Putnam City Schools raise $103,000 for cancer research at OMRF.
For 36 years, bright minds from PC Schools have visited OMRF labs.