Introduction to the Acro-Pectoro-Renal (APR) Field Defect Market The Acro-Pectoro-Renal (APR) Field Defect Market represents a highly specialized niche within the broader rare congenital disorder treatment landscape. APR field defect is a rare developmental disorder characterized by anomalies of the limbs (acro), chest wall (pectoro), and kidneys (renal). Though...