1. 3D printed ballet shoe ‘P-rouette’ reduces pain and injuries for dancers | All3DP. Retrieved December 20, 2019, from. https://all3dp.com/4/3d-printed-ballet-shoe-p-rouette-reduces-pain-injuries-dancers/
2. 3D printing golf clubs and equipment. February 07, 2020, from. https://3dprint.com/219546/3d-print-golf-clubs-and-equipment/
3. 3D printed handlebars help set world record. Retrieved February 07, 2020, from. https://all3dp.com/3d-printed-handlebars-world-record/
4. 3D printed protective face masks for football players. Retrieved February 07, 2020, from. https://3dprinting.com/news/new-3d-printed-protective-face-masks-football-players/
5. 3D printed putting trainer helps golfers observe new USGA rule. Retrieved February 07, 2020, from. https://3dprint.com/43532/in-sync-3d-putting-trainer/