The Smallest People in the World
These films document the children's lives as they turn nine and 10. Some are searching for the independence, others are fighting just to stay alive.
Some of the children are now striving for more independence. Zoe decides whether to go through further surgery on her arms. Meanwhile, William may need to undergo brain surgery again.
With all six children having reached 10, the families reflect on just how much life has changed over the past decade