Samuel’s Reviews > The Toxic Tooth: How a root canal could be making you sick > Status Update

This book has a serious lack of supportive evidence and references. Only 150 references?? really?
Way a lot of studies that supposedly support their theories are not cited. Where did the authors took this information from?
Besides, this study performed by Dr. Boyd Haley measuring (in his own method) how the toxins of root canal treated teeth inhibit some human enzymes... I couldn't find it anywhere on the internet!