CAREPLUS HEALTH PLANS INC. / HUMANA MEDICAL PLAN INC. / HEALTHSPRING / FLORIDA HEALTH CARE PLAN INC. / H5431 HEALTHSUN HEALTH PLANS INC. / KAISER FOUNDATION HP INC. / GA INC. / H0524 KAISER FOUNDATION HP INC. / H3330 HUMANA HEALTH PLAN INC. / FOUNDATION HP / /