MAP20110036133 Duncan, Ian A Risk-based evaluation methodology for cost effectiveness of chronic condition health management / Ian Duncan, Bryan Beatty, Brian Day En: North American actuarial journal. - Schaumburg : Society of Actuaries, 1997- = ISSN 1092-0277. - 03/01/2011 Tomo 15 Número 1 - 2011 I. Beatty, Bryan . II. Day, Brian .