Addressing geographical variation in the progression of non-communicable diseases in Peru: The CRONICAS cohort study protocol

J. Jaime Miranda, Antonio Bernabe-Ortiz, Liam Smeeth, Robert H. Gilman, William Checkley, Juan P. Casas, George Davey Smith, Shah Ebrahim, Raúl Gamboa, Héctor H. García, Luis Huicho, Germán Málaga, Víctor M. Montori, Gregory B. Diette, Fabiola León-Velarde, María Rivera, Robert A. Wise, Katherine Sacksteder