JOINT BASE SAN ANTONIO-FORT SAM HOUSTON, Texas  –   It’s summer and kids have more time to go online. Air Force Col. (Dr.) Renée Matos, chief of pediatrics at Brooke Army Medical Center, offers safety tips for social media use. Col Matos oversees BAMC’s state-of-the-art pediatric primary and subspecialty care for military beneficiaries across the city.