Here are a few links –
- https://www.cancer.net/cancer-types/breast-cancer-men
- https://www.cancer.org/cancer/breast-cancer-in-men/about/what-is-breast-cancer-in-men.html
- https://www.mayoclinic.org/diseases-conditions/male-breast-cancer/symptoms-causes/syc-20374740
- https://www.webmd.com/breast-cancer/breast-cancer-men
- https://my.clevelandclinic.org/health/diseases/9011-male-breast-cancer
