Applying a zero-corrected, gravity model estimator reduces bias due to heterogeneity in healthcare utilization in community-scale, passive surveillance datasets of endemic diseases.

Evans MV, Ihantamalala FA, Randriamihaja M, Aina AT, Bonds MH, Finnegan KE, Rakotonanahary RJL, Raza-Fanomezanjanahary M, Razafinjato B, Raobela O, Raholiarimanana SH, Randrianavalona TH, Garchitorena A.