This is an appeal by Quik-Snap Printing Corp., from judgments of the County Court determining that petitioner Edward Phillips was entitled to workmen’s compensation. It also appeals through its workmen’s compensation insurance carrier, New Jersey Manufacturers Insurance Company on the additional ground that Liberty Mu*352tual Insurance Company was the insurance carrier responsible for petitioner’s compensable condition. The County Court disposition followed an appeal by petitioner from an adverse determination of the Division of Workmen’s Compensation dismissing his petition and amended petition for compensation.
Appellant emphasizes these to be the salient findings of fact made by the County Court, viz:
From the evidence 'presented, this Court finds as follows:
1) the petitioner, for a period of eight years was required to lift rolls of paper weighing 85 to 100 pounds with his right arm; 2) this was a continuous day to day process; 3) these rolls had to be stacked as many as nine high; 4) as a result of this use of his right arm, the scalenus anticus muscle in the petitioner’s neck became hypertrophied; 5) thus the scalenus muscle caused pressure on the subclavian artery supplying blood to petitioner’s right arm; 6) this loss of blood resulted in the present condition to petitioner. If the effort or strain, whether great or little was the incident of the employee’s work and either alone or in combination with disease, played a material part in causing, contributing or accelerating petitioner’s condition, it is compensable. Dwyer v. Ford Motor Co., supra [36 N. J. 487] at 497.
It is argued that this determination “is not grounded in a legally sufficient medical opinion of work related causation * * * which can be found in the record and, therefore, must itself be reversed.”
At this juncture our function is defined primarily by Close v. Kordulalc Bros., 44 N. J. 589, 599 (1965):
[T]he standard to govern appellate intervention is the same as on an appeal in any non-jury case, i. e., ‘whether the findings made could reasonably have been reached on sufficient credible evidence present in the record,’ considering ‘the proofs as a whole,’ with due regard to the opportunity of the one who heard the witnesses to judge of their credibility.” (Emphasis added).
Appellate review might be somewhat more exacting where the determinations of lower tribunals are not harmonious. It has been stated
*353* * * — that 1he Appellate Division will ordinarily not undertake a review de novo and make an independent decision of the contested issue of fact but only decide whether the determination of the tribunal under review is reasonably supportable on the whole record before it. So guided, our function here is to examine the record for the purpose of determining whether the County Court conclusion is reasonably supportable on the whole record before it, in the light of the legal principles applicable, giving due regard to any conflicting- findings of the Division of Compensation founded on either special expertise or a superior opportunity to appraise credibility of the witnesses. Kaplowitz v. K & R. Appliances, Inc., 108 N. J. Super. 54, 62 (App. Div. 1969). Compare, Leming v. Federal Pacific Electric Co., 59 A. J. 512 (1971).
The County Court was obliged to bring to bear upon the record its own independent judgment uncolored by the opinion and conclusions of the Judge of Compensation. MacDonald v. Hudson Bus Transportation Co., 100 N. J. Super. 103 (App. Div. 1968); Stallone v. Schiavone-Bonomo Corp., 103 N. J. Super. 170 (App. Div. 1968). We conclude that in so doing the County Court reached factual findings based upon sufficient credible evidence which are reasonably supportable on the whole record before it. We have reviewed respondent’s specific contentions and find them lacking in merit. In particular we have noted respondent’s argument that the lower court’s finding that the petitioner’s “scalenus anticus muscle * * * became hypertrophied * * * thus the scalenus muscle caused pressure on the subclavian artery supplying blood to petitioner’s right arm” was not based upon sufficient evidence. There was medical testimony that what was involved was a physical condition of the scalenus anticus muscle which caused pressure upon the subclavian artery. There was such compression upon the subclavian artery attributable to a stretched or taut condition of the scalenus anticus muscle and this was indicated by pre-operative tests, revealed by actual surgery and confirmed by post-operative events. There was also sufficient evidential support for the court’s determination that petitioner’s work “either alone or in combination with disease [i. e. here structural anatomical developments] played a material part in causing, eontribut*354ing or accelerating petitioner’s [present] condition.” The County Court carefully evaluated the conflicting medical testimony giving due regard to the vantage of the Judge of Compensation on matters of expertise and credibility. MacDonald v. Hudson, etc., supra. The court below made an independent analysis of the medical testimony and determined that the treating physicians were more persuasive. Handleman v. Marwen Stores Corp., 53 N. J. 404 (1969); Bober v. Independent Plating Corp., 28 N. J. 160; Dwyer v. Ford Motor Co., 36 N. J. 487 (1962); Aladits v. Simmons Co., 47 N. J. 115 (1966).
With respect to the arguments concerning the extent of petitioner’s disability and whether it had manifested itself before Liberty Mutual Insurance Company “came on the risk” or alternatively, it had become aggravated or accelerated subsequent thereto, we perceive no error in the order of the court below affirming the determination of the Judge of Compensation on remand that New Jersey Manufacturers Insurance Company was the responsible carrier with respect to petitioner’s disability.
Affirmed.