PITTSBURGH ?Oct. 9, 2006 ?A Children’s Hospital of Pittsburgh pediatrician is leading national efforts to improve the diagnosis and treatment of one of the most common infections of childhood through innovate training methods.Middle ear infection, also known as acute otitis media (AOM), is the pediatric illness for which antibiotics are most often prescribed. Three out of four children will experience an ear infection by age 3. However, diagnosis remains difficult and experts often are divided on treatment options, according to Alejandro Hoberman, MD, chief of the Division of General Academic Pediatrics at Children’s.