The Clean pilot study: evaluation of an environmental hygiene intervention bundle in three Tanzanian hospitals oleh Giorgia Gon, Abdunoor M. Kabanywanyi, Petri Blinkhoff, Simon Cousens, Stephanie J. Dancer, Wendy J. Graham, Joseph Hokororo, Fatuma Manzi, Tanya Marchant, Dickson Mkoka, Emma Morrison, Sarah Mswata, Shefali Oza, Loveday Penn-Kekana, Yovitha Sedekia, Sandra Virgo, Susannah Woodd, Alexander M. Aiken