APA (7th ed.) Citation

LL, S. (2007). Clinical trials in the elderly -- a concept comes of age. New England Journal of Medicine, 256(15), 1575.

Chicago Style (17th ed.) Citation

LL, Siu. "Clinical Trials in the Elderly -- a Concept Comes of Age." New England Journal of Medicine 256, no. 15 (2007): 1575.

MLA (9th ed.) Citation

LL, Siu. "Clinical Trials in the Elderly -- a Concept Comes of Age." New England Journal of Medicine, vol. 256, no. 15, 2007, p. 1575.

Warning: These citations may not always be 100% accurate.