%0 Journal Article %J Journal of Adolescent Health %D 2019 %T Positive youth development programs in low- and middle-income countries: A conceptual framework and systematic review of efficacy %A Catalano, Richard F. %A Skinner, Martie L. %A Alvarado, Gina %A Kapungu, Chisina %A Reavley, Nicola %A Patton, George C. %A Jessee, Cassandra %A Plaut, Daniel %A Moss, Caitlin %A Bennett, Kristina %A Sawyer, Susan M. %A Sebany, Meroji %A Sexton, Magnolia %A Olenik, Christina %A Petroni, Suzanne %B Journal of Adolescent Health %V 65 %P 15-31 %G eng