Identifying challenges and recommendations for advancing global mental health implementation research: A key informant study of the National Institute of Mental Health Scale-Up Hubs

John A. Naslund, Jasmine Kalha, Juliana L. Restivo, Ishmael Amarreh, Tamora A. Callands, Hongtu Chen, Carlos Gómez–Restrepo, Hesham M. Hamoda, Arjun Kapoor, Sue E. Levkoff, Jones Masiye, María A. Oquendo, Vikram Patel, Inge Petersen, Ozge Sensoy Bahar, Laura Shields‐Zeeman, Fred M. Ssewamala, Deepak Tugnawat, José Miguel Uribe-Restrepo, Lakshmi Vijayakumar, Bradley H. Wagenaar, Milton L. Wainberg, Larry Wissow, Haja Wurie, Chifundo Zimba, Soumitra Pathare