APA (7th ed.) Citation

Johnson, D. L., Ferretti, A., Labianca, L., & Monaco, E. (2010). Letter to the Editor. American Journal of Sports Medicine, 38(1), NP1. https://doi.org/10.1177/0363546508324964

Chicago Style (17th ed.) Citation

Johnson, Darren L., Andrea Ferretti, Luca Labianca, and Edoardo Monaco. "Letter to the Editor." American Journal of Sports Medicine 38, no. 1 (2010): NP1. https://doi.org/10.1177/0363546508324964.

MLA (9th ed.) Citation

Johnson, Darren L., et al. "Letter to the Editor." American Journal of Sports Medicine, vol. 38, no. 1, 2010, p. NP1, https://doi.org/10.1177/0363546508324964.