%0 Journal Article %A C E Frost %A A W Ward %T An analysis of hospitalization insurance schemes. %D 1973 %R 10.1136/jech.27.4.197 %J British Journal of Preventive & Social Medicine %P 197-207 %V 27 %N 4 %U https://jech.bmj.com/content/jech/27/4/197.full.pdf