| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=20054705.ui | |
| subscription/membership/fee required | Springer | https://doi.org/10.1007/s11095-009-0024-y | |
| Full text from | free resource | CORE | https://core.ac.uk/reader/52420594?utm_source=linkout |