Dr. Laposata's two-and-a-half-page letter dated July 26, challenged by the Commonwealth as insufficiently identifying the basis for her opinions

Sprague challenged Laposata's two-and-a-half-page letter dated July 26 for failing to identify the materials underlying her opinions. Sullivan expressed an inclination to allow the opinion that the injuries were consistent with landing on the head, requested a written identification of its basis, and said the Commonwealth could present rebuttal testimony if it sought to do so.