Newborn Screening: What's Possible, What's Not & What Matters. Nancy Leslie, MD Microarry Genetic Testing in the Neonatal Period: Indications, Results & Implications for Management. Jennifer Gamm Ruschman, ScM CGC Perspectives & Diagnostic Considerations in Spinal Muscular Athrophy. Thomas Prior, PhD Characteristics of Newborn Screening Results in Preterm Infants. Jonathan Slaughter, MD