Conference ProceedingsThe Stability of Drug Analytes in Positive Umbilical Cord Tissue After Long-Term Frozen StoragePresenting section:Toxicology2021Fenton, Emily, Willow Grove PA; Hessler, Robert Paul, Hatfield PA; Moody, Marykathryn Tynon, Horsham PA; Scott, Karen S., Glenside PAView the paperToxicology