Testing Locations » Pennsylvania » Shamokin PA » Back 2 Back Chiropractic Llc – Back 2 Back Chiropractic Llc – Drug Testing Only (Preferred) Back 2 Back Chiropractic Llc – Back 2 Back Chiropractic Llc – Drug Testing Only (Preferred) Back 2 Back Chiropractic Llc – Back 2 Back Chiropractic Llc – Drug Testing Only (Preferred)323 Trevorton RoadShamokin, PA 17872-6527 United States Appointment Required