@misc{indiciae6b9b0e7e0e7f, title = {Screening tests for porphyria.}, author = {T K With}, year = {1971}, doi = {10.1016/s0140-6736(71)90980-9}, url = {https://pubmed.ncbi.nlm.nih.gov/4099901/}, note = {Source identifier: 4099901} }