Millions' of children have been helped by Buster Posey's cancer

Buster Posey Visits Packard Children's Hospital Cancer Patients

Thank You Buster - Diamond Digest

San Francisco Giants' Buster Posey comes up big for the San Francisco Giants - ESPN

28: A Photographic Tribute to Buster Posey (Hardcover)

Buster & Kristen Posey BP28 – Buster & Kristen Posey in the fight against childhood cancer

He was a rock': San Francisco Giants honor Buster Posey's retirement during Saturday's game - ABC7 San Francisco

Buster Posey discusses BP28 Foundation fight against pediatric cancer – NBC Sports Bay Area & California

Giants catcher Buster Posey brightens day at pediatric cancer ward – East Bay Times

Buster and Kristen Posey Fund - V Foundation

Buster Posey raises money for cancer awareness

AP Source: Giants C Buster Posey will announce retirement

Buster Posey Champions Pediatric Cancer Awareness - SI Kids: Sports News for Kids, Kids Games and More