Plaintiff Dennis Dunn appeals as of right from the judgment, entered on June 28, 1988, on a general jury verdict of no cause of action. In this medical malpractice action, plaintiff alleged that defendant Crumsen Nundkumar, M.D., had failed to properly diagnose and treat plaintiff’s decedent’s gallbladder problem or make a timely referral to an internist, surgeon or gastroenterologist. The decedent, Brinda Dunn, on September 3, 1983, a few weeks after giving birth by Caesarean section, died from acute hemorrhagic pancreatitis subsequent to cholecystitis (gallbladder inflammation) due to cholelithiasis (gallstones). On appeal, plaintiff maintains that the trial court erred in precluding the deposition testimony of one of plaintiff’s expert witnesses, Michael Blank, M.D., a board certified general surgeon and family practitioner, on the basis of the court’s considera *53 tion of defendant as a specialist in obstetrics and gynecology. We affirm.
First, plaintiff argues that the trial court erroneously referred to defendant as a "specialist” in obstetrics and gynecology, as defendant did not receive board certification as an ob/gyn until December of 1983, three months after Brinda Dunn died. Plaintiff contends, therefore, that the court should have considered defendant to be a general practitioner, for whom Dr. Blank’s deposition testimony on the standard of care would have been relevant. However, we find no authority, and plaintiff cites none, for the proposition that board certification is a necessary prerequisite for the court’s designation of defendant as a specialist. A statement of position without supporting citation waives the issue on appeal.
Tringali v Lal,
Next, plaintiff argues that even if defendant is a *54 specialist, the trial court erred in not allowing the deposition testimony of Dr. Blank on the issues of standard of care and proximate causation.
Whether a witness is qualified as an expert is left to the discretion of the trial court.
Petrove v Grand Trunk W R Co,
We also find harmless any error in the trial court’s refusal to allow into evidence those por *55 tions of Dr. Blank’s deposition regarding proximate causation. The trial court did not refuse to qualify Dr. Blank on this issue, rather the court found that his testimony on this issue was too intertwined with his testimony on the standard of care and his opinion as to defendant’s breach of that standard. The decision whether to admit evidence is within the sound discretion of the trial court. Petrove, supra at 715. Further, relevant evidence may be excluded if its probative value is substantially outweighed by the danger of unfair prejudice. MRE 403; Petrove, supra. In making its ruling, the trial court focused on the following passage from Dr. Blank’s deposition testimony on direct examination:
Q. Can you testify with a reasonable degree of medical certainty that the failures of Dr. Nundkumar, as you have listed them, ultimately resulted in this patient’s death?
A. [Dr. Blank] In my opinion, there is no doubt. The ultimate chain of events were that she wasn’t diagnosed, and therefore, wasn’t treated appropriately, and it caused her death.
We find no abuse of discretion with regard to the court’s ruling on the above exchange.
However, in examining the entire deposition, we find that on redirect examination Dr. Blank responded to a question free of any inference on defendant’s possible breach of the standard of care:
Q. Can you testify with a reasonable degree of medical certainty if the plaintiffs [sic] demise could have been avoided in this case had a consult been requested earlier?
A. [Dr. Blank] In my opinion, more than likely, it would have been avoided. In this day and age *56 it’s very seldom that you die from complications of gallbladder disease and cholelithiasis-cholecystitis.
From our review of the trial court record, it is not clear whether plaintiff failed to bring the above deposition passage to the attention of the trial court, or whether its omission was an oversight of the court. However, we do note that, in his brief on appeal, plaintiff does not argue or even cite this particular passage. In any event, we find any error by the trial court in this regard to be harmless in light of the following testimony at trial by Dr. Hillabrand which went to the question of proximate causation:
Q. Okay. Any other criticisms?
A. [Dr. Hillabrand] And then the failure to investigate in the postpartum period when the mother was still having complaints, so she shouldn’t have gone home with or without examination, but she should have had the examination with or without the fever. Any of these things could have given the answer to this thing and avoided the complications later on. [Emphasis added.]
While later during the trial, and outside the jury’s presence, the trial court ruled that Dr. Hillabrand would not be permitted to testify further concerning proximate causation, defendant failed to make a timely objection to the above testimony and the trial court allowed it to remain in evidence. This may not be overwhelming evidence on proximate causation, but we find it sufficient for the jury to have reasonably found for the plaintiff on this issue.
Ghezzi v Holly,
Affirmed.
