The HSCB said a working group would analyse the responses for consideration by the health minister.

BBC: Future of children's heart surgery in Northern Ireland

The HSCB said it had a whistle-blowing policy and encouraged staff with concerns to raise them through this.

BBC: Lissue Hospital

But the HSCB said taking the documents was a "serious breach of security".

BBC: Lissue Hospital

The Health and Social Care Board (HSCB) has urged everyone with an interest in the future of children's cardiac surgery to ensure they have their say.

BBC: Future of children's heart surgery in Northern Ireland