Spot-scanning proton therapy for early breast cancer in free breathing versus deep inspiration breath-hold oleh Line Bjerregaard Stick, Louise Lærke Nielsen, Cecilia Bui Trinh, Ihsan Bahij, Maria Fuglsang Jensen, Camilla Jensenius Skovhus Kronborg, Stine Elleberg Petersen, Linh My Hoang Thai, May-Lin Martinsen, Helle Precht, Birgitte Vrou Offersen