Article: Ninth Circuit decision highlights the value of medical evidence in rebutting section 20(a) presumption in aggravating injury case

If an employee’s pre-existing condition is aggravated or accelerated by work conditions, the employer can be liable for the claimant’s entire disability, not just the aggravated or accelerated portion.

http://www.standard-club.com/risk-management/knowledge-centre/news-and-commentary/2020/03/article-ninth-circuit-decision-highlights-the-value-of-medical-evidence-in-rebutting-section-20-a-presumption-in-aggravating-injury-case.aspx