@misc{indiciaed294c46d1368, title = {Investigation into patch testing with copper sulphate.}, author = {S Walton}, year = {1983}, doi = {10.1111/j.1600-0536.1983.tb04646.x}, url = {https://pubmed.ncbi.nlm.nih.gov/6839755/}, note = {Source identifier: 6839755} }