Medical skin enhancement apparatus using lasers; medical apparatus and instruments; laser instruments for medical use; apparatus for the application of laser radiation for medical purposes; laser beam delivery instruments for medical use; infrared apparatus for medical purposes; medical radiation apparatus; laser installations for medical use; lasers incorporating optical fibres for medical use; lasers capable of producing pulsating laser beams [for medical use]; lasers for medical purposes; medical instruments; medical instruments incorporating lasers; electronic medical instruments; fibre optic instruments for medical purposes; electromagnetic wave therapeutic instruments.