Why assisted dying Bill vote is too close to call - and which MPs are voting for and against?

A man reads a ‘dying wish’, tied to a tree near the Houses of Parliament - (PA Wire)

Parliament remains divided ahead of a vote on whether to approve assisted dying on Friday, in what could be one of the most significant laws in a century.

The divisive issue is being debated in the Commons on Friday for the first time in almost a decade – having been voted down by MPs in 2015.