Absorption chillers Absorption cooling Absorption refrigeration Bromine compounds Cephalometry Child Chilled water Class III malocclusion Cooling systems Cost benefit analysis Double effects Double-effect libr absorption chiller Exergetic Extraoral Traction Appliances Facemask Facial Bones Facial growth Female Gene Expression Regulation High pressure effects High temperature PEMFCs High temperature applications High-temperature PEMFC Humans Industrial double-effect chiller Lithium bromide Macrophage Activation Male Malocclusion, Angle Class III Mandible