Comment on

• The carriage of Escherichia coli resistant to antimicrobial agents by healthy children in Boston, in Caracas, Venezuela, and in Qin Pu, China.

  Lester SC, del Pilar Pla M, Wang F, Perez Schael I, Jiang H, O'Brien TF. Lester SC, et al. N Engl J Med. 1990 Aug 2;323(5):285-9. doi: 10.1056/NEJM199008023230501. N Engl J Med. 1990. PMID: 2195344