TY - RPRT TI - Patch testing against Pityrosporum antigen. AU - D S Nicholls AU - G Midgeley AU - R J Hay PY - 1990 DO - 10.1111/j.1365-2230.1990.tb02029.x UR - https://pubmed.ncbi.nlm.nih.gov/2311288/ ID - 2311288 ER -