Flynn A, Tremblay PF, Rehm J, Wells S. A modified random walk door-to-door recruitment strategy for collecting social and biological data relating to mental health, substance use/addictions and violence problems in a Canadian community. IJADR [Internet]. 2013Sep.6 [cited 2024Apr.29];2(2):7-16. Available from: https://ijadr.org/index.php/ijadr/article/view/143