van Loon FP, Clemens JD, Sack DA, Rao MR, Ahmed F, Chowdhury S, Harris JR, Ali M, Chakraborty J, Khan MR, et al. ABO blood groups and the risk of diarrhea due to enterotoxigenic Escherichia coli. J Infect Dis. 1991 Jun;163(6):1243-6.
van Loon FP, Clemens JD, Sack DA, Rao MR, Ahmed F, Chowdhury S, Harris JR, Ali M, Chakraborty J, Khan MR, et al. ABO blood groups and the risk of diarrhea due to enterotoxigenic Escherichia coli. J Infect Dis. 1991 Jun;163(6):1243-6.