Johan Hartman, Mattias Rantalainen & Yinxi Wang
![](https://mb.cision.com/Public/206/3423538/a23773f41b903186_800x800ar.jpg)
Photographer: Stefan Zimmerman
Johan Hartman (left) at the Department of Oncology-Pathology, Mattias Rantalainen and Yinxi Wang (right), at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet.