@misc{indiciae0d0291bb2014, title = {Persistent urticaria caused by a common coloring agent.}, author = {D J Baumgardner}, year = {1989}, doi = {10.1080/00325481.1989.11700706}, url = {https://pubmed.ncbi.nlm.nih.gov/2710728/}, note = {Source identifier: 2710728} }