Erratum to "Commissioning and quality assurance of a novel solution for respiratory-gated PBS proton therapy based on optical tracking of surface markers" [Z Med Phys 32 (2022) 52-62]

Affiliations

• ¹ Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland. Electronic address: giovanni.fattori@psi.ch.
• ² Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland.
• ³ Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; Department of Radiation Oncology, University Hospital Zurich, 8091 Zurich, Switzerland; Department of Radiation Oncology, University Hospital Bern, 3000 Bern, Switzerland.
• ⁴ Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; Department of Physics, ETH Zurich, 8092 Zurich, Switzerland.