APA

Vrieze A., de Greef M. H. G., Wijkstra P. J., Wýkstra P. J. & Wempe J. B. (20071010). Low bone mineral density in COPD patients related to worse lung function, low weight and decreased fat-free mass. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Chicago

Vrieze A, de Greef M H G, Wijkstra P J, Wýkstra P J and Wempe J B. 20071010. Low bone mineral density in COPD patients related to worse lung function, low weight and decreased fat-free mass. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Harvard

Vrieze A., de Greef M. H. G., Wijkstra P. J., Wýkstra P. J. and Wempe J. B. (20071010). Low bone mineral density in COPD patients related to worse lung function, low weight and decreased fat-free mass. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

MLA

Vrieze A, de Greef M H G, Wijkstra P J, Wýkstra P J and Wempe J B. Low bone mineral density in COPD patients related to worse lung function, low weight and decreased fat-free mass. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 20071010.