Ms Evans listed the common problems that rare disease suffers face: "Access to timely diagnosis, misdiagnosis, lack of access to information, poor coordination of care, problematic transition from children's to adult services, poor access to treatment, lack of research and inequality of provisions".

BBC: Short debate: Rare diseases

Henderson's group has been working on a smooth digital transition for poor people and minorities.

NPR: Early Switch To Digital Has Viewers Seeking Help

This is because such countries have moved furthest along the demographic transition from poor, high-fertility status to richer, low-fertility status.

ECONOMIST: African child mortality

You might expect poor people to lead this process of transition because they have more scope to cut family size.

ECONOMIST: Free exchange

Ironically, it is poor blacks who have suffered most in the transition.

ECONOMIST: South African farming

It can be caused by a number of factors, including a rapid increase in the frequency of training, sudden increase in the intensity of training, transition from one training method to another, genetic abnormalities of the knee joint and poor base strength of the quadriceps.

BBC: Hargreaves faces career concerns

How someone fabricates a line of analysis that can transition from a mathematical examination of greenhouse effects all the way to policies for helping the poor still mystifies me.

FORBES: A Call to Arms on Climate Change