Stuttering in Toddlers & Preschoolers: What's Typical, What's Not?
Read from the start of the article up until the section called "risk factors for stuttering." (3 minutes)
American Academy of Pediatrics and American Speech-Language-Hearing Association - 2015
Click https://www.healthychildren.org/English/ages-stages/toddler/Pages/Stuttering-in-Toddlers-Preschoolers.aspx link to open resource.