344 A.2d 422 DAVIDSON ET AL. v. MILLER, INFANT, ETC. ET AL. [No. 226, September Term, 1974.]Court of Appeals of Maryland. Decided September 18, 1975. EVIDENCE — Expert Testimony — Opinion Cannot Be Based On Conjecture Or Speculation — Expert Medical Prognosis Must Be Probable, Rather Than Merely Possible. Where medical expert’s opinion as to […]