3260121 PFRT pediatric functional reach test 4 3260114 PFRT plantarflexion resistance torque 2 3260120 PFRT parafoveal retinal thickness 1 3260119 PFRT PF radiotherapy 1 3260115 PFRT posterior fossa radiation therapy 1 3260116 PFRT power of the fracture response to treatment 1 3260117 PFRT prophylactic factor replacement therapy 1 3260118 PFRT pseudo forward ray-tracing 1