Beyond the Major Determinant: Patterns of Penicillin Skin Test Positivity. The journal of allergy and clinical immunology. In practice 2026 https://researcherprofiles.org/profile/794943350 42498127 Salciccioli I, King AJ, Accarino JJO, Belmont A, Fadugba OO, Gonzalez-Estrada A, Khan DA, Liu A, Otani IM, Phillips EJ, Ramsey A, Stone CA, Banerji A, Blumenthal KG, USDAR Study Team