One of the nation's top medical clinics is looking into its crystal ball.

The Cleveland Clinic has unveiled some of its most-promising medical innovations for next year.

At the top of the list is a mobile stroke unit; an ambulance that uses videoconferencing, so doctors can quickly diagnose stroke patients.

A vaccine for dengue fever is also in the works.

And even something for people who hate needles; the Cleveland Clinic reports painless blood testing will become more common.

It pricks your finger to take a blood sample, instead of a huge needle in your vein.