article_snippet.sent: Muller-Wohlfahrt (fourth from left) claims that a substance called Hyalart, which is extracted from the crest of cockerels, helps lubricate knee injuries and take away pain.
article_snippet.sent: I'm not sure what that means, although with me Hans-Wilhelm Muller-Wohlfahrt would use fluid taken from the comb on the head of a hen to lubricate a knee joint that had been eroded by a succession of injuries.
article_snippet.sent: Hans-Wilhelm Muller-Wohlfahrt would tell me that it was like 'high quality oil for the engine of a car'.
article_snippet.sent: Hans-Wilhelm Muller-Wohlfahrt concluded that the fluid taken from a hen's comb would lubricate the knee and allow greater movement.