title: Estimating catastrophic health expenditures: need for improved methodology and interpretation.
authors.affiliation: School of Public Health, Post Graduate Institute of Medical Education and Research, Chandigarh, India E-mail:  shankarprinja@gmail.com.
authors.forename: Shankar
authors.initials: S
authors.lastname: Prinja
authors.forename: Ramesh
authors.initials: R
authors.lastname: Verma
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