TY - RPRT TI - Nonanoic acid irritation - a positive control at routine patch testing? AU - J E Wahlberg AU - H I Maibach PY - 1980 DO - 10.1111/j.1600-0536.1980.tb03920.x UR - https://pubmed.ncbi.nlm.nih.gov/7398264/ ID - 7398264 ER -