Jean Chevaillier, born in Ypres, Belgium, on 06/14/1940. He studied for obtaining the Diploma in Physiotherapy University Stedelijk Instituut voor Paramedische Beroep Ghent, graduated in June 1963. Head of physiotherapy Zeepreventorium De Haan, Belgium, from 1963 until June 2005. Founder and initiator of autogenic drainage. Founding member of the International Physiotherapy Group for Cystic Fibrosis. Instructor teaching nationally and internationally, of autogenic drainage and physiotherapy in obstructive lung diseases.