Prevalence and antimicrobial susceptibility pattern of gram-negative bacteria contaminating the hands of patients’ visitors at regional referral hospitals in Dar-es-Salaam - Ninael Jonas; Donath Mkenda Valerian; Stanslaus Henry; Emmanuel Magembe; Reuben Abednego; Loveness Urio; Eligius Lyamuya (PLoS ONE, 2025)