The survey approach was used twice by a group of researchers based primarily at Johns Hopkins University, who published their results in the medical journal The Lancet . Their estimates have been lauded, but also questioned because of their misinterpretation of their own figures.
主要来自约翰·霍普金斯大学的调查人员两次使用了这种调查方法，并将调查结果在医学期刊《柳叶刀》上进行了刊登。他们的估算被人广为称颂，但也由于他们曲解了自己的调查数据而受到了人们的质疑。