Authors' Response to the Letter to the Editor Entitled: How Can We Interpret Insomnia as a “Risk Factor” on Behavioral Symptom

We extend our sincere gratitude to Dr Yamamoto et al for reading our article titled “Prevalence and risk of Behavioral Symptoms among Patients with Insomnia and Alzheimer's Disease: A Retrospective Database Analysis” with great interest. We are pleased to have the opportunity to respond to the concerns that were mentioned in their letter.