American Academy of Pediatrics, Committee on Sports Medicine and Fitness Julkaisussa Pediatrics (2000) “...junior elite sport...”
Macchi, C., Catini, C., Catini, C. R., Contini, M., Zito, A., Urbano, F., Miniati, B., Molino Lova, R., Gulisano, M., Brizzi, E. Julkaistu 2001 “...junior elite sport...”