APA (7th ed.) Citation

Burstein, H. J. (2003). Beyond Tamoxifen — Extending Endocrine Treatment for Early-Stage Breast Cancer. New England Journal of Medicine, 349(19), 1857. https://doi.org/10.1056/NEJMe038174

Chicago Style (17th ed.) Citation

Burstein, Harold J. "Beyond Tamoxifen — Extending Endocrine Treatment for Early-Stage Breast Cancer." New England Journal of Medicine 349, no. 19 (2003): 1857. https://doi.org/10.1056/NEJMe038174.

MLA (9th ed.) Citation

Burstein, Harold J. "Beyond Tamoxifen — Extending Endocrine Treatment for Early-Stage Breast Cancer." New England Journal of Medicine, vol. 349, no. 19, 2003, p. 1857, https://doi.org/10.1056/NEJMe038174.

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