@misc{indiciae2aa17ca24d0d, title = {Doppler commentary.}, author = {David M Duffy}, year = {2002}, doi = {10.1046/j.1524-4725.2002.02831\_4.x}, url = {https://pubmed.ncbi.nlm.nih.gov/11966802/}, note = {Source identifier: 11966802} }