Table 2.

Three pillars of novel algorithm.

Pillar	Wilson and Jungner Classic Screening Principles
Pillar 1: Condition	Principle 1: The condition sought should be an important health problem
	Principle 4: There should be a recognisable latent or early symptomatic stage
	Principle 7: The natural history of the condition, including development from latent to declared disease, should be adequately understood
Pillar 2: Screening	Principle 5: There should be a suitable test or examination
	Principle 6: The test should be acceptable to the population
Pillar 3: Treatment	Principle 2: There should be an accepted treatment for patients with recognised disease