Ozano, K., Dean, L., Adekeye, O., Bettee, A. K., Dixon, R., Gideon, N. U., Gwani, N., Isiyaku, S., Kollie, K., Lar, L., Oluwole, A., Piotrowski, H., Siakeh, A., Thomson, R., Yashiyi, J., Zawolo, G., & Theobald, S. (n.d.). guiding principles for quality, ethical standards and ongoing learning in implementation research: multicountry learnings from participatory action research to strengthen health systems. Health policy and planning, 35, ii137–ii149. http://access.bl.uk/ark:/81055/vdc_100116969143.0x00003b