title: Author's reply to English and Potter.
authors.affiliation: PICUM-the Platform for International Cooperation on Undocumented Migrants, Brussels 1000, Belgium lilana.keith@picum.org.
authors.forename: Lilana
authors.initials: L
authors.lastname: Keith
mesh_terms: D017048:Health Care Costs; D006291:Health Policy / Q000191:economics*; D006297:Health Services Accessibility; D006801:Humans; D013222:State Medicine; D000069756:Undocumented Immigrants