PARP1 and oral cavity squamous cell carcinoma: High PARP‐1 protein is associated with shorter survival in soft tissue sarcomas (Kim et al, 2016), poor prognosis in gastric cancer (Park et al, 2015); is an independent prognostic factor for decreased PFS and OS in high‐grade serous ovarian carcinoma (Gan et al, 2013); is associated with higher grade, ER negativity, and TNBC, as well disease‐free and overall survival in operable invasive BrCa (Rojo et al, 2012); and is associated with poor prognosis in oral squamous cell carcinoma (Mascolo et al, 2012).