Allegations of poor practice at major UK provider Health Assured have been made to BBC File on 4.
Entries by BBC News
The review focuses on devices frequently used in the NHS, like pulse oximeters and skin cancer apps.
Some people with cancer are being "completely let down" by not being treated on time, experts say.
Wales' pandemic health minister regrets not having his messages available to the UK Covid inquiry
Rebecca and Angharad Lewis are urging greater awareness of a heart condition which can be fatal.
Millions of people do not realise they have dangerously high blood pressure that needs treating, says NHS England.
A health system "at breaking point" is causing delays in diagnosis and treatment, says ombudsman.
Regulators have ordered the centre to halt any new procedures while an investigation continues.
Analysis identifies areas with the fewest doctors in England, as the drive to boost numbers falls short.
A BBC investigation finds 109 warning letters last year highlighted NHS waits or resource pressures.