"(1) If it appears to the court that it would be equitable to allow an action to proceed having regard to the degree to which- (a) the provisions of section 11 or 12 of this Act prejudice the plaintiff or any person whom he represents; and (b) any decision of the court under this subsection would prejudice the defendant or any person whom he represents; the court may direct that those provisions shall not apply to the action, or shall not apply to any specified cause of action to which the action relates. ….. (3) In acting under this section the court shall have regard to all the circumstances of the case and in particular to – (a) the length of, and the reasons for, the delay on the part of the plaintiff; (b) the extent to which, having regard to the delay, the evidence adduced or likely to be adduced by the plaintiff or the defendant is or is likely to be less cogent than if the action had been brought within the time allowed by section 11 ….; (c) the conduct of the defendant after the cause of action arose, including the extent (if any) to which he responded to requests reasonably made by the plaintiff for information or inspection for the purpose of ascertaining facts which were or might be relevant to the plaintiff's cause of action against the defendant; (d) the duration of any disability of the plaintiff arising after the date of the accrual of the cause of action; (e) the extent to which the plaintiff acted promptly and reasonably once he knew whether or not the act or omission of the defendant, to which the injury was attributable, might be capable at that time of giving rise to an action for damages; (f) the steps, if any, taken by the plaintiff to obtain medical, legal or other expert advice and the nature of any such advice he may have received. ….. (8) References in this section to section 11 include references to that section as extended by …. [section 14]."