Guoxian Huang, Lili Ma, Yonglong Wu 2018, 'Omphaloceles in combination with a self-made hemispherical cushion: a report of 12cases', Brazilian Journal of Medical and Biological Researchhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018001000501&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)

Liu WL, Chen YA, Lai YW, Hsueh TY, Chen SS, Chiu AW 2014, 'Nationwide survey to evaluate medical utilization by patients with inguinal herniaand the risk of developing varicocele in Taiwan', Patient Preference and Adherencehttp://www.dovepress.com/nationwide-survey-to-evaluate-medical-utilization-by-patients-with-ing-a15576. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)