RSA 507-E:2 Burden of Proof.

I. In any action for medical injury, the plaintiff shall have the burden of proving by affirmative evidence which must include expert testimony of a competent witness or witnesses:
(a) The standard of reasonable professional practice in the medical care provider's profession or specialty thereof, if any, at the time the medical care in question was rendered; and
(b) That the medical care provider failed to act in accordance with such standard; and
(c) That as a proximate result thereof, the injured person suffered injuries which would not otherwise have occurred.
II. Without limiting the applicability of paragraph I of this section, where the plaintiff claims that a medical care provider failed to supply adequate information to obtain the informed consent of