(in English)
https://www.expertwitnessjournal.co.uk/special-reports/777-c...

The ability to reliably identify a psychological ‘injury’, to understand its causes and to establish appropriate attribution to a trigger event are crucial to the successful functioning of the civil court and to the law firms and the clinical experts who provide services to them. Ensuring and maximising evidential reliability involves careful consideration of any pre-injury psychological issues, as well as any pre-event and post-event stressors (Leckart,2009). This process may well involve ‘apportionment’ i.e. the estimation of the percentage of psychological injury caused as a direct result of the index event, as opposed to other unrelated pre-event or post-event factors. The notion of apportionment is typically applied with respect to three time frames: prior to the index event, the index event period itself and, thirdly, at the time of the medico legal assessment period (typically 3 – 36 months later).


(in French)
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...

(in ProZ)
https://www.proz.com/kudoz/english-to-french/medical-general...

https://www.proz.com/kudoz/english-to-french/mathematics-sta...