@misc{indiciaed415aa66d318,
  title = {Treating erectile dysfunction when PDE5 inhibitors fail.},
  author = {Chelsea N McMahon and Christopher J Smith and Ridwan Shabsigh},
  year = {2006},
  doi = {10.1136/bmj.332.7541.589},
  url = {https://pubmed.ncbi.nlm.nih.gov/16528082/},
  note = {Source identifier: 16528082}
}