Identification and characterisation of diabetes in Uganda: protocol for the nested, population-based ‘Diabetes in low-resource Populations’ (DOP) Study oleh Moffat J Nyirenda, Emily Webb, Anxious J Niwaha, Isaac Sekitoleko, Ronald Makanga, Wisdom P Nakanga, Viola Mugamba, Priscilla Balungi, Bernard Mpairwe, Ongaria Terry, Esther Nabanoba, Joseph O Mugisha, Geofrey Kimbugwe