A phase II study evaluating safety and efficacy of niraparib in patients with previously treated homologous recombination defective metastatic esophageal/gastroesophageal junction/proximal gastric adenocarcinoma - Khalid, Ahmed Bilal; Fountzilas, Christos; Burney, Heather N.; Mamdani, Hirva; Schneider, Bryan P.; Fausel, Christopher; Perkins, Susan M.; Jalal, Shadia (Frontiers in Oncology, 2024)