Emerson, G. G., Harlan, J. B., Fekrat, S., Lutty, G. A., & Goldberg, M. F. (2005). Hemoglobinopathies. In Retina: Fourth Edition (Vol. 2–3, pp. 1429–1445). https://doi.org/10.1016/B978-0-323-02598-0.50085-9

Emerson, G. G., J. B. Harlan, S. Fekrat, G. A. Lutty, and M. F. Goldberg. “Hemoglobinopathies.” In Retina: Fourth Edition, 2–3:1429–45, 2005. https://doi.org/10.1016/B978-0-323-02598-0.50085-9.

Emerson GG, Harlan JB, Fekrat S, Lutty GA, Goldberg MF. Hemoglobinopathies. In: Retina: Fourth Edition. 2005. p. 1429–45.

Emerson, G. G., et al. “Hemoglobinopathies.” Retina: Fourth Edition, vol. 2–3, 2005, pp. 1429–45. Scopus, doi:10.1016/B978-0-323-02598-0.50085-9.

Emerson GG, Harlan JB, Fekrat S, Lutty GA, Goldberg MF. Hemoglobinopathies. Retina: Fourth Edition. 2005. p. 1429–1445.