@misc{indiciaead95c04142c4,
  title = {A multicenter, randomized, double-blind, crossover study to evaluate patient preference between tadalafil and sildenafil.},
  author = {Alexander von Keitz and Jacob Rajfer and Scott Segal and Aileen Murphy and Jonathan Denne and Timothy Costigan and Daniel Lockhart and Charles M Beasley and Jeffrey T Emmick},
  year = {2004},
  doi = {10.1016/j.eururo.2003.11.030},
  url = {https://pubmed.ncbi.nlm.nih.gov/15041116/},
  note = {Source identifier: 15041116}
}