regulation

Market regulations require formal statements following speculation of such potential buy-outs.

The company reiterated its critical stance on the EU on Friday, saying its regulations were creating a worse experience for users and businesses unlike the UK's "more pro-growth and pro-innovation regulatory environment".

“Consistent with regulations, our label states clearly ‘if pregnant or breast-feeding, ask a health professional before use,’ ” Melissa Witt said in an email.

Anthony Nolan said any contact between a donor and patient depended on privacy regulations of the patient's country, and was led by the patient.

But he told reporters afterwards that Bailey was retaining an open mind on crypto regulation, adding "that was at least encouraging".