Electronic access and citation rates for articles from Pharmacological Reviews Articles were chosen for illustrative purposes and were not systematically identified. The number of citations was determined using ISI Web of Knowledge. Citations per year were determined by dividing the number of citations by the number of days since publication divided by 365. Note that the electronic access numbers are for full texts of the articles during January 2009 only.
| Article | Topic | Electronic Accesses January 2009 | Citations Since Publication | Citations per Year Since Publication | Electronic Accesses per Annual Citation |
|---|---|---|---|---|---|
| Andersson, 2001 | Penile erection | 1310 | 197 | 26.5 | 49.4 |
| Kreek et al., 2005 | Cocaine | 498 | 68 | 17.3 | 28.8 |
| Dingledine et al., 1999 | Glutamate receptor | 746 | 1620 | 163 | 4.6 |
| Moghimi et al., 2001 | Nanoparticles | 381 | 494 | 64.3 | 5.9 |
| Hawkins and Davis, 2005 | Blood-brain barrier | 417 | 146 | 39.7 | 10.5 |