A recent study, published in the Green Journal demonstrates that BioXmark introduces considerably less dose perturbation compared to solid fiducial markers. The study concludes that due to the low dose perturbation BioXmark may serve as a good alternative to solid markers for image-guided proton therapy. The study was conducted in a collaboration between Paul Scherrer Institut (PSI) and Rigshospitalet in Copenhagen. For more information, please refer to the article