APA

Groen B. E., Smulders E., de Kam D., Duysens J. & Weerdesteyn V. (20110113). Martial arts fall training to prevent hip fractures in the elderly. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Chicago

Groen B E, Smulders E, de Kam D, Duysens J and Weerdesteyn V. 20110113. Martial arts fall training to prevent hip fractures in the elderly. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Harvard

Groen B. E., Smulders E., de Kam D., Duysens J. and Weerdesteyn V. (20110113). Martial arts fall training to prevent hip fractures in the elderly. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

MLA

Groen B E, Smulders E, de Kam D, Duysens J and Weerdesteyn V. Martial arts fall training to prevent hip fractures in the elderly. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 20110113.