Adapting, piloting, and evaluating a pediatric lead screening and risk-reduction intervention in Nairobi: A hybrid implementation-effectiveness trial protocol - Ikenna Onoh; Cyrus Mugo; Anne Riederer; Elizabeth Maleche-Obimbo; Faridah Hussein Were; Christine Loftus; Ferdinand Mukumbang; Edith Lumumba; Barbra Richardson; Priscilla Wanini Edemba; Beatrice C. Mutai; Catherine Karr; et al. (PLoS ONE, 2026)