BibTex format
@article{Howard:2002:10.1016/S0001-706X(02)00093-1,
author = {Howard, SC and Donnelly, CA and Kabatereine, NB and Ratard, RC and Brooker, S},
doi = {10.1016/S0001-706X(02)00093-1},
journal = {ACTA TROPICA},
pages = {141--149},
title = {Spatial and intensity-dependent variations in associations between multiple species helminth infections},
url = {http://dx.doi.org/10.1016/S0001-706X(02)00093-1},
volume = {83},
year = {2002}
}