Pyloric Stenosis of Infancy(PS): Discovering the Cause

The recent article previewed on January 18th, 2023, made me consider how clinical predictive testing (CPT) may be similarly used to predict the cause of conditions for which no cause has yet been accepted. One such condition is pyloric stenosis of infancy (PS). The signs and symptoms are many, and the credible explanations are few. Does CPT have anything to offer in this challenge?