A Visual Biofeedback Method to Define and Teach Breathing Patterns-Hillsman, Deane-Biological Psychology, v. 43, Issue 3-Jun. 28, 1996-p. 261.*A Visual Biofeedback Method to Define and Teach Breathing Patterns-Hillsman, Deane—Biological Psychology, v. 43, Issue 3—Jun. 28, 1996—p. 261...