pay for visa what next

hi every one, can anyone tell me after they have pay for their visa and issurance at the nvc how long after will be the medical and interview. i am outside the us i am a parient of a us citizen. thanks to you ann.

hi every one, can anyone tell me after they have pay for their visa and issurance at the nvc how long after will be the medical and interview. i am outside the us i am a parient of a us citizen. thanks to you ann.