The document summarizes a Health Technology Assessment report on interventions to increase participation in organized cancer screening programs. It found that mail and phone recalls, as well as having a general practitioner's signature on the invitation letter, consistently increased participation. Fixed appointments also increased participation compared to open invitations. Self-sampling for HPV testing increased participation in non-responders relative to standard recall letters. The report evaluated interventions' efficacy, cost-effectiveness, organizational impact, and social/ethical issues.