“This is my second time that I used Levitra. It is ok medication able to solve my erection problems. It worked me up as with other similar drugs I was lost.”

“It is not fair that everybody knows about Viagra, Levitra worked perfectly for me and moreover it is less expensive and easier to find. I almost have not experienced any side effects, at least those severe to make sex impossible. Works like a charm.”

The method was pioneered by UK scientists to overcome devastating, sometimes fatal inherited diseases.

It also recommends PAs and AAs wear standardised clothing and badges to distinguish them from doctors.

UK Biobank scientists say the human body can be studied in greater detail than ever thanks to people like Steve.

Resident doctors in England will strike over pay for five days from 25 July.