Urine Pregnancy Test: Female participants will be asked to provide a urine sample which will be tested for the presence of human chorionic gonadotropin (hCG) using the QuickVue One-Step urine hCG pregnancy test (Quidel Corporation, San Diego, CA). The test provides a qualitative measure of hCG in urine (≥ 25 milli-Intenational unit (mIU/mL); 99% sensitivity; 99% specificity). The urine pregnancy test will be performed at screening and on the day of the study visit, prior to the urine drug screen and breathalyzer test. If the pregnancy test is positive, the subject will be excluded and no further testing will take place.