| Verified | Status | Citation | Memento |
|---|---|---|---|
| 2016.04.27 | a | http://dogs.about.com/od/toyssupplies/tp/Dog-Leashes.htm |
|
| 2016.04.27 | a | http://www.rps.ac.uk/mss/1318/9 | |
| 2016.04.27 | r | http://www.jhu.edu/jhumag/996web/smell.html |
|