Henry Marsh is one of the country's top neurosurgeons and a pioneer of neurosurgical advances in Ukraine. Erica Wagner witnesses life on a knife-edge.
A new regular column, "Nurse in the City", by Brian Kellett.
"Few people enjoy a perfect sexual relationship - we need to encourage those people to access the services and support they need."
The WHO's latest health inequity report made a startling claim that "about half" of those with HIV deliberately infected themselves in order to claim benefits, a claim not backed by the study cited.
We need to collect billions of data points for analysis by computers, and the only company in major contention to do this soon is 23andMe.