TY - RPRT TI - Activating a 2 x 4 appliance. AU - R J Isaacson AU - S J Lindauer AU - L K Rubenstein PY - 1993 DO - 10.1043/0003-3219(1993)063<0017:aaa>2.0.co;2 UR - https://pubmed.ncbi.nlm.nih.gov/8507026/ ID - 8507026 ER -