| Views | |
| Cardiothoracic Surgery | 270 |
| December 2012 | January 2013 | February 2013 | March 2013 | April 2013 | May 2013 | June 2013 | |
| Cardiothoracic Surgery | 20 | 30 | 14 | 23 | 22 | 14 | 4 |
| Views | |
| United States of America | 87 |
| China | 48 |
| Canada | 13 |
| Russian Federation | 10 |
| South Africa | 5 |
| Germany | 4 |
| Japan | 1 |
| Korea | 1 |
| Netherlands | 1 |
| Sweden | 1 |
| Views | |
| Beijing | 44 |
| Redwood City | 19 |
| Beverly Hills | 18 |
| Toronto | 10 |
| Santa Clara | 5 |
| Sayreville | 4 |
| Ottawa | 3 |
| San Jose | 2 |
| Stellenbosch | 2 |
| Ashburn | 1 |