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Heikkilä, Helka M., Tarja S. Jokinen, Pernilla Syrjä, Jouni Junnila, Anna Hielm-Björkman, και Outi Laitinen-Vapaavuori. "Assessing Adverse Effects of Intra-articular Botulinum Toxin A in Healthy Beagle Dogs: A Placebo-controlled, Blinded, Randomized Trial." PLoS One 2018.

Heikkilä, Helka M., et al. "Assessing Adverse Effects of Intra-articular Botulinum Toxin A in Healthy Beagle Dogs: A Placebo-controlled, Blinded, Randomized Trial." PLoS One 2018.