How can I stay healthy down there? | The Royal Women’s Hospital
https://thewomens.org.au/health-information/vulva-vagina/your-vulva-vagina/how-can-i-stay-healthy-down-there
Ngày truy cập: 31/05/2023
Baseline dimensions of the human vagina | Human Reproduction | Oxford Academic
https://academic.oup.com/humrep/article/21/6/1618/724374?login=false
Ngày truy cập: 31/05/2023
Average-Size Erect Penis: Fiction, Fact, and the Need for Counseling
https://pubmed.ncbi.nlm.nih.gov/32666897/
Ngày truy cập: 31/05/2023
Female genital appearance: ‘normality’ unfolds
https://www.bmj.com/sites/default/files/response_attachments/2014/06/Female%20genital%20appearance%3A%20normality%20unfolds%250AJ.%20LLOYD%20ET%20AL.%250AFEMALE%20GENITAL%20APPEARANCE.pdf
Ngày truy cập: 31/05/2023
(PDF) Data from 14,597 penile measurements of Vietnamese men
https://www.researchgate.net/publication/348711589_Data_from_14597_penile_measurements_of_Vietnamese_men
Ngày truy cập: 31/05/2023
Average-Size Erect Penis: Fiction, Fact, and the Need for Counseling
https://pubmed.ncbi.nlm.nih.gov/32666897/
Ngày truy cập: 31/05/2023
How deep is the average vagina, and does it elongate when something’s in it? | Go Ask Alice!
https://goaskalice.columbia.edu/answered-questions/how-deep-average-vagina-and-does-it-elongate-when-somethings-it/
Ngày truy cập: 31/05/2023
How can vaginas not vary much in size, for real?
https://www.scarleteen.com/article/advice/how_can_vaginas_not_vary_much_in_size_for_real
Ngày truy cập: 31/05/2023
I know a vagina can stretch in width, but can it stretch in depth?
https://www.plannedparenthood.org/learn/ask-experts/i-know-a-vagina-can-stretch-in-width-but-can-it-stretch-in-depth
Ngày truy cập: 31/05/2023
Women’s techniques for making vaginal penetration more pleasurable: Results from a nationally representative study of adult women in the United States – PMC
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8046227/#:~:text=Data%20suggest%20that%2087.5%25%20of,and%20what%20it%20feels%20like
Ngày truy cập: 31/05/2023