Well-being’s diverse elements (freedom from hunger, disease, indignity and discrimination, to name four) are generally observable and, he believes, measurable.

The disease is no longer a health problem alone, but is having a measurable impact on food production, household food security and rural people's ability to make a living.

Those with at least one measurable lesion and at least one tumor assessment after baseline were evaluable for response; patients with disease progression were also evaluable.