Dr Greg Deleuil is an unusual GP. He joined the Army reserve as a civilian doctor and often found himself treating the army divers. Through this experience he gained expertise in diving medicine and became skilled at lung function testing. Just down the road from his surgery in North Perth was the headquarters of the Asbestos Diseases Society and he soon came to the attention of its director Robert Vojakovic. The ADS started referring to him people affected by asbestos-related diseases, beginning a relationship that has now lasted for over a quarter of a century.