[1] Winebrake J P, Grover K, Halteh P, et al. Pediatric Onychophagia: A Survey-Based Study of Prevalence, Etiologies, and Co-Morbidities [J]. Am J Clin Dermatol, 2018, 19(6): 887-891.
[2] Halteh P, Scher R K, Lipner S R. Onychophagia: A nail-biting conundrum for physicians [J]. J Dermatolog Treat, 2017, 28(2): 166-172.
[3] Leung A K C, Hon K L. Pica: A Common Condition that is Commonly Missed - An Update Review [J]. Curr Pediatr Rev, 2019, 15(3): 164-169.
[4] Miao D, Young S L, Golden C D. A meta-analysis of pica and micronutrient status [J]. Am J Hum Biol, 2015, 27(1): 84-93.[5] 儿童锌缺乏症临床防治专家共识编写专家组, 中国研究型医院学会儿科学专业委员会. 儿童锌缺乏症临床防治专家共识 [J]. 儿科药学杂志, 2020, 26(3): 46-50.