TY - RPRT TI - A variable criterion circuit for biofeedback training. AU - H K Myers AU - J A Corson AU - G A Klassen PY - 1979 DO - 10.1111/j.1469-8986.1979.tb01527.x UR - https://pubmed.ncbi.nlm.nih.gov/515300/ ID - 515300 ER -