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Age distribution and percentage of excision-cancer absence in basal cell carcinoma and squamous cell carcinoma. Basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) cases were divided into four groups based on age, including cases younger than 60, 61-70, 71-80 and older than 80 years old. The percentage of excision-cancer absence in each group is shown as squares (SCC) and circles (BCC). aP = 0.02, percentage of excision-cancer absence in BCC vs SCC in 71-80 years old group.
