PT - JOURNAL ARTICLE AU - Finkle, Clea AU - Bai, Yacine AU - Chandra-Mouli, Venkatraman AU - O’Keefe, Samuel AU - Tetui, Moses AU - Fischer, Suzanne AU - Lokko, Kojo AU - Mwaikambo, Lisa AU - Ohkubo, Saori TI - The Challenge Initiative: Lessons on Rapid Scale-Up of Family Planning and Adolescent and Youth Sexual and Reproductive Health Services AID - 10.9745/GHSP-D-24-00153 DP - 2024 May 21 TA - Global Health: Science and Practice PG - e2400153 VI - 12 IP - Supplement 2 4099 - http://www.ghspjournal.org/content/12/Supplement_2/e2400153.short 4100 - http://www.ghspjournal.org/content/12/Supplement_2/e2400153.full SO - GLOB HEALTH SCI PRACT2024 May 21; 12