Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 233, § 79C

Statements of facts or opinions on a subject of science or art contained in a published treatise, periodical, book or pamphlet shall, in so far as the court shall find that the said statements are relevant and that the writer of such statements is recognized in his profession or calling as an expert on the subject, be admissible in actions of contract or tort for malpractice, error or mistake against physicians, surgeons, dentists, optometrists, hospitals and sanitaria, as evidence tending to prove said facts or as opinion evidence; provided, however, that the party intending to offer as evidence any such statements shall, not less than thirty days before the trial of the action, give the adverse party or his attorney notice of such intention, stating the name of the writer of the statements, the title of the treatise, periodical, book or pamphlet in which they are contained, the date of publication of the same, the name of the publisher of the same, and wherever possible or practicable the page or pages of the same on which the said statements appear.