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Frequency of target areas included in the study, per participant
| Target areas | Frequency |
|---|---|
| Normal TDLUs only | 162 |
| UDH and normal TDLUs | 133 |
| ADH and normal TDLUs | 41 |
| ALH and normal TDLUs | 17 |
| UDH, ADH and normal TDLUs | 1 |
| ADH, ALH and normal TDLUs | 7 |
| UDH only | 5 |
| ADH only | 1 |
| ALH only | 1 |
| Total | 368 |
TDLUs =terminal duct lobular units, UDH=usual ductal hyperplasia, ADH=atypical ductal hyperplasia, ALH=atypical lobular hyperplasia
