TY - GEN AU - de Groot,A C AU - Coenraads,P J AU - Nater,J P TI - [How often is 'allergy' really an allergy?] SN - 0028-2162 PY - 1989///0228 KW - Cosmetics KW - adverse effects KW - Dermatitis, Contact KW - diagnosis KW - Female KW - Humans KW - Skin Tests N1 - Publication Type: Letter ER -