https://www.babycenter.com/0_tooth-care-for-children_11282.bc

http://www.parents.com/toddlers-preschoolers/development/social/hygiene-basics-for-kids/

http://www.parents.com/kids/sleep/naps/baby-nap-time/

https://www.babycenter.com/0_how-to-help-your-toddler-develop-fine-motor-skills_11549.bc

http://pediatrics.aappublications.org/content/119/1/182

http://www.whattoexpect.com/toddler-nutrition/toddler-eating-habits.aspx