From: Transcranial magnetic resonance-guided focused ultrasound pallidothalamic tractotomy for patients with X-linked dystonia-parkinsonism: a study protocol
F value
Minimum Sample (n*)
Inflated Sample Formula: n* / (1-DOR)
0.25 (Medium Effect)
62.5
69.5
0.30
43.5
48.5
0.35
32.5
36
0.40 (Large Effect)
24.5
27.5