Ulbricht, C., Chao, W., Costa, D., Nguyen, Y., Seamon, E., & Weissner, W. An evidence-based systematic review of green-lipped mussel (Perna canaliculus) by the Natural Standard Research Collaboration. Journal of Dietary Supplements, 6(1), 54-90. https://doi.org/10.1080/19390210802690191 (Original work published 2009)

Abu, H., Ulbricht, C., Ding, E., Allison, J., Salmoirago-Blotcher, E., Goldberg, R., & Kiefe, C. (2018). Association of religiosity and spirituality with quality of life in patients with cardiovascular disease: a systematic review. Quality of Life Research : An International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation. https://doi.org/10.1007/s11136-018-1906-4 (Original work published 2018)