The Pew Research Center's 2003 Global Attitudes Survey found that "people in Africa and the Middle East strongly object to societal acceptance of homosexuality.
But there is far greater tolerance for homosexuality in major Latin American countries such as Mexico, Argentina, Bolivia and Brazil. Majorities in every Western European nation surveyed say homosexuality should be accepted by society, while most Russians, Poles and Ukrainians disagree.
Hahn was written out of Grey's Anatomy in November 2008, with Smith commenting that the decision originated with the ABC network rather than with series creator Shonda Rhimes.
Prior to assuming the role, Smith observed heart surgery being performed, and admitted to finding stressful the pressure of continually portraying a medical professional realistically.
The character is presented as highly professional, to the point of being a "workaholic".
Upon her first appearance in the series it is established that Hahn is a long-time rival of main character and fellow cardiothoracic surgeon Preston Burke, dating back to their days at Johns Hopkins University School of Medicine, where she graduated second after Burke.
She is introduced as a cardiothoracic attending surgeon at Seattle Presbyterian Hospital when she and Burke fight over a donor heart.
And I really hoped we were going to show what happens when two women fall in love and that they were going to treat it like any heterosexual couple on TV.