A paper (co-authored by Kondo Laboratory and McCann Health Japan) was published in a peer-reviewed academic journal in PR TIMES.
https://prtimes.jp/main/html/rd/p/000000035.000027750.html
A Shimoda, L Yue, H Hayashi, N Kondo. Dementia risks identified by vocal features via telephone conversatons: a novel machine learning prediction model. PLOS ONE. 2021;16(7):e0253988. DOI: https://doi.org/10.1371/journal.pone.0253988