1. Cytotoxic Activity of Six Samples of Brazilian Propolis on Sea Urchin (Lytechinus variegatus) Eggs
   C. C. Fernandes-Silva et al, 2013, Evidence-Based Complementary and Alternative Medicine CrossRef
2. Chinese Propolis Inhibits the Proliferation of Human Gastric Cancer Cells by Inducing Apoptosis and Cell Cycle Arrest
   Xia-sen Jiang et al, 2020, Evidence-Based Complementary and Alternative Medicine CrossRef
3. Tumor-suppressing potential of stingless bee propolis in in vitro and in vivo models of differentiated-type gastric adenocarcinoma
   Mark Joseph Desamero et al, 2019, Scientific Reports CrossRef
4. Propolis: A Complex Natural Product with a Plethora of Biological Activities That Can Be Explored for Drug Development
   Ricardo Silva-Carvalho et al, 2015, Evidence-Based Complementary and Alternative Medicine CrossRef
5. Chemopreventive and Chemotherapeutic Effect of Propolis and Its Constituents: A Mini-review
   Hui-Fang Chiu et al, 2020, Journal of Cancer Prevention CrossRef
6. Propolis and Its Potential to Treat Gastrointestinal Disorders
   Luisa Mota da Silva et al, 2018, Evidence-Based Complementary and Alternative Medicine CrossRef