voluntary physiotherapy

Hi,i am a 25 years old physiotherapist from Greece.I m interested to work as a volunteer to any country allover the world.I don t want to participate in programs of companies that need a payment for three months work for example.I want also to ask if medecins sans frontiers (msf) need physiotherapists because here in our country are no mission programs for physiotherapists.If somebody can please inform me.
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