1. Review and characteristics of 585 salivary gland neoplasms from a tertiary hospital registered in the Polish National Major Salivary Gland Benign Tumors Registry over a period of 5 years: a prospective study
   Krzysztof Piwowarczyk et al, 2020, Otolaryngologia Polska CrossRef
2. Salivary Gland Pleomorphic Adenomas Presenting With Extremely Varied Clinical Courses. A Single Institution Case-Control Study†
   Krzysztof Piwowarczyk et al, 2021, Frontiers in Oncology CrossRef