TY - BOOK AU - Gertler,Paul AU - Gaag,J.van der TI - The willingness to pay for medical care: evidence from two developing countries SN - 0801841461 U1 - 338.433621091724 20 PY - 1990/// CY - Baltimore PB - Published for the World Bank [by] Johns Hopkins University Press KW - Medical economics KW - Developing countries KW - Medical care N1 - Includes bibliographical references (p. 125-133) and index ER -