A patient attends a relaxation session at the Taipas rehabilitation clinic in Lisbon August 10, 2012.Lisbon's Taipas rehabilitation clinic is one of over 40 such clinics across the country, the result of Portugal's 11-year-old pioneering drugs policy which decriminalised drug use while offering free treatment and state-funded street-work programmes. Picture taken August 10. To match Feature PORTUGAL DRUGS/ REUTERS/Rafael Marchante (PORTUGAL - Tags: SOCIETY DRUGS)