APA

Janssen J. A., Stolk R. P., Pols H. A., Grobbee D. E. & Lamberts S. W. (19980924). Serum free and total insulin-like growth factor-I, insulin-like growth factor binding protein-1 and insulin-like growth factor binding protein-3 Levels in healthy elderly individuals. Relation to self-reported quality of health and disability. : Gerontology.

Chicago

Janssen J A, Stolk R P, Pols H A, Grobbee D E and Lamberts S W. 19980924. Serum free and total insulin-like growth factor-I, insulin-like growth factor binding protein-1 and insulin-like growth factor binding protein-3 Levels in healthy elderly individuals. Relation to self-reported quality of health and disability. : Gerontology.

Harvard

Janssen J. A., Stolk R. P., Pols H. A., Grobbee D. E. and Lamberts S. W. (19980924). Serum free and total insulin-like growth factor-I, insulin-like growth factor binding protein-1 and insulin-like growth factor binding protein-3 Levels in healthy elderly individuals. Relation to self-reported quality of health and disability. : Gerontology.

MLA

Janssen J A, Stolk R P, Pols H A, Grobbee D E and Lamberts S W. Serum free and total insulin-like growth factor-I, insulin-like growth factor binding protein-1 and insulin-like growth factor binding protein-3 Levels in healthy elderly individuals. Relation to self-reported quality of health and disability. : Gerontology. 19980924.