31.   She returned to the tennis tour after undergoing treatment at a drugs rehabilitation centre.

32.   She recently became a director of a drug rehabilitation centre and a centre for disadvantaged children.

33.   Social workers and police said treatment in rehabilitation centres does not stop addicts from returning to their habit.

34.   The government had last month proposed harsher penalties to curb drug smuggling in its prisons and rehabilitation centres.

35.   The leader of a drug rehabilitation centre in southern Portugal has been exposed as one of the five leaders of an international drugs ring, police said Tuesday.

36.   The jail near Tel Aviv has the largest drug rehabilitation centre behind bars in the world, according to the Israeli prison service.