TY - RPRT TI - Active sensitization to elecampane by patch testing with a crude plant extract. AU - W Aberer AU - B M Hausen PY - 1990 DO - 10.1111/j.1600-0536.1990.tb01509.x UR - https://pubmed.ncbi.nlm.nih.gov/2323189/ ID - 2323189 ER -