A savings intervention to reduce men’s engagement in HIV risk behaviors: study protocol for a randomized controlled trial oleh Teniola I. Egbe, Ouma Dan Omollo, Julius Oduor Wesonga, Elizabeth F. Bair, Averi Chakrabarti, Mary E. Putt, Connie L. Celum, Carol S. Camlin, Sue Napierala, Kawango Agot, Harsha Thirumurthy