Millions' of children have been helped by Buster Posey's cancer research foundation - ABC7 San Francisco
Buster & Kristen Posey BP28 – Buster & Kristen Posey in the fight against childhood cancer
San Francisco Giants star Buster Posey, wife look to strike out childhood cancers - San Francisco Business Times
Giants star Buster Posey sitting out the 2020 season – Santa Cruz Sentinel
Buster Posey announces program to support childhood cancer
AP Source: Giants C Buster Posey will announce retirement
Buster and Kristen Posey's BP28 Gala rallies against pediatric cancer
Buster Posey to help fight pediatric cancer
Buster and Kristen Posey Fund - V Foundation