Before treatment begins, you will have a screening visit with the study doctor/staff, to find out if you are eligible to take part in the study. This visit will involve an in-depth interview about your history of depression and other mental health problems. If you have not yet been to a doctor, the study staff will give you a urine pregnancy test to make sure you are pregnant.You will also be asked to complete several questionnaires regarding smoking history and other areas of your daily life. The questionnaires themselves take about 30-45 minutes to complete. The visit may last between 1 1/2 and 3 1/2 hours, depending on the complexity of the interview.