site conclusion. If such were the rule, the use of expert testimony based upon the evaluation of a number of facts would be severely, and we think too much, restricted. The facts upon which Dr. von Oettingen based his opinion were, we think, such as to ‘permit reasonably accurate conclusions, as distinguished from, mere guess or conjecture,’ (Marshall v. Sellers, 188 Md. 508, 519, 53 A. 2d 5 [1947], in which this test was stated but was held not to have been met), notwithstanding that this particular item of discoloration and possibly one or two others may have militated against his conclusion. That would seem to be a question for the jury to consider in weighing his overall opinion. Marshall v. Sellers, supra, 188 Md. at 518.” 221 Md. at 487.
The problem in the present case was similar. There was a conflict in testimony, but there was evidentiary support for certain facts, the truth of which Dr. Levitt was asked to assume in his answer to the hypothetical question. These facts were before the jury, which was entitled to have the benefit of Dr. Levitt’s expert opinion, predicated on all the facts which supported the hypothesis.
We find no error in the lower court’s denial of the motion to strike.
(v)
The denial of Dr. Nolan’s motions for a directed verdict at the close of Mrs. Dillon’s case and at the close of all the evidence
In two recent cases, Anderson v. Johns Hopkins Hospital, 260 Md. 348, 350, 272 A. 2d 372 (1971) and Johns Hopkins Hospital v. Genda, 255 Md. 616, 621, 258 A. 2d 595 (1969), we have had occasion to reaffirm the rule of the Maryland cases applicable to medical malpractice. It is perhaps nowhere better stated than it was by Chief Judge Brune, speaking for the Court in Lane v. Calvert, 215 Md. 457 at 462-63, 138 A. 2d 902 (1958) :