1. Orchiopexy.PubMed Health.https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0025072/. Accessed October 28 2018.
2. Ideal timing of orchiopexy: a systematic review
3. An Overview of Perioperative Care for Pediatric Patients
4. Management of boys with nonpalpable undescended testis: treatment.Medscape.https://www.medscape.org/viewarticle/572743_3. Accessed November 20 2018.