3M United States | Littmann cardiology, Stethoscope, Cardiology
3M Littmann Cardiology IV Diagnostic Stethoscope 6163 | B-Arm Medical
3M Littmann Cardiology IV 27" Diagnostic Stethoscope | AllHeart.com
Amazon.com: 3M Littmann Cardiology IV Diagnostic Stethoscope, Rainbow-Finish Chest Piece, Black Tube, Stem and Headset, 27 Inch & Classic III Monitoring Stethoscope, Rainbow-Finish, Caribbean Blue Tube, 27 Inch : Industrial & Scientific