@misc{indiciaed17d1c586f43, title = {Neurotransmitter identity doubt.}, author = {L J Ignarro and P A Bush and G M Buga and J Rajfer}, year = {1990}, doi = {10.1038/347131b0}, url = {https://pubmed.ncbi.nlm.nih.gov/1975643/}, note = {Source identifier: 1975643} }