APA

Underwood M., Ashby D., Cross P., Hennessy E., Letley L., Martin J., Mt-Isa S., Parsons S., Vickers M. & Whyte K. (20080303). Advice to use topical or oral ibuprofen for chronic knee pain in older people: randomised controlled trial and patient preference study. : BMJ (Clinical research ed.).

Chicago

Underwood Martin, Ashby Deborah, Cross Pamela, Hennessy Enid, Letley Louise, Martin Jeannett, Mt-Isa Shahrul, Parsons Suzanne, Vickers Madge and Whyte Ken. 20080303. Advice to use topical or oral ibuprofen for chronic knee pain in older people: randomised controlled trial and patient preference study. : BMJ (Clinical research ed.).

Harvard

Underwood M., Ashby D., Cross P., Hennessy E., Letley L., Martin J., Mt-Isa S., Parsons S., Vickers M. and Whyte K. (20080303). Advice to use topical or oral ibuprofen for chronic knee pain in older people: randomised controlled trial and patient preference study. : BMJ (Clinical research ed.).

MLA

Underwood Martin, Ashby Deborah, Cross Pamela, Hennessy Enid, Letley Louise, Martin Jeannett, Mt-Isa Shahrul, Parsons Suzanne, Vickers Madge and Whyte Ken. Advice to use topical or oral ibuprofen for chronic knee pain in older people: randomised controlled trial and patient preference study. : BMJ (Clinical research ed.). 20080303.