Community-based type 2 diabetes care by lay village health workers in rural Lesotho: protocol for a cluster-randomized trial within the ComBaCaL cohort study (ComBaCaL T2D TwiC) oleh Felix Gerber, Ravi Gupta, Thabo Ishmael Lejone, Thesar Tahirsylaj, Tristan Lee, Maurus Kohler, Maria Ines Haldemann, Fabian Räber, Mamakhala Chitja, Molulela Manthabiseng, Makhebe Khomolishoele, Mota Mota, Matumaole Bane, Pauline Mamorontsane Sematle, Retselisitsoe Makabateng, Madavida Mphunyane, Sejojo Phaaroe, Dave Basler, Kevin Kindler, Eleonora Seelig, Matthias Briel, Frédérique Chammartin, Niklaus Daniel Labhardt, Alain Amstutz