A. 1. In any civil action for negligence wherein the plaintiff shall be required to present the testimony of an expert witness to establish breach of the relevant standard of care and that such breach of duty resulted in harm to the plaintiff, except as provided in subsection B of this section, the plaintiff shall attach to the petition an affidavit attesting that: a. the plaintiff has consulted and reviewed the facts of the claim with a qualified expert, b. the plaintiff has obtained a written opinion