09:42 25/02/2026
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Nguồn tham khảo
  1. Professional, C. C. M. (2025, December 24). Erection. Retrieved from https://my.clevelandclinic.org/health/articles/10036-erection
  2. What is an erection? A First-Timer’s guide to getting hard. (2020, December 15). Retrieved from https://www.healthline.com/health/healthy-sex/what-is-an-erection
  3. Symptoms & Causes of Erectile Dysfunction. (2025, October 3). Retrieved from https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/symptoms-causes
  4. Sheng, Z. (2021). Psychological consequences of erectile dysfunction. Trends in Urology & Men S Health, 12(6), 19–22. https://doi.org/10.1002/tre.827
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