Engstrom, P. F., Arnoletti, J. P., Benson, A. B., Berlin, J. D., Berry, J. M., Chen, Y.-J., … NCCN, . (2010). NCCN clinical practice guidelines in oncology. Anal carcinoma. J Natl Compr Canc Netw, 8(1), 106–120. https://doi.org/10.6004/jnccn.2010.0007

Engstrom, Paul F., Juan Pablo Arnoletti, Al B. Benson, Jordan D. Berlin, J Michael Berry, Yi-Jen Chen, Michael A. Choti, et al. “NCCN clinical practice guidelines in oncology. Anal carcinoma.” J Natl Compr Canc Netw 8, no. 1 (January 2010): 106–20. https://doi.org/10.6004/jnccn.2010.0007.

Engstrom PF, Arnoletti JP, Benson AB, Berlin JD, Berry JM, Chen Y-J, et al. NCCN clinical practice guidelines in oncology. Anal carcinoma. J Natl Compr Canc Netw. 2010 Jan;8(1):106–20.

Engstrom, Paul F., et al. “NCCN clinical practice guidelines in oncology. Anal carcinoma.” J Natl Compr Canc Netw, vol. 8, no. 1, Jan. 2010, pp. 106–20. Pubmed, doi:10.6004/jnccn.2010.0007.

Engstrom PF, Arnoletti JP, Benson AB, Berlin JD, Berry JM, Chen Y-J, Choti MA, Cooper HS, Dilawari RA, Early DS, Enzinger PC, Fakih MG, Fleshman J, Fuchs C, Grem JL, Knol JA, Leong LA, Lin E, Mulcahy MF, Rohren E, Ryan DP, Saltz L, Shibata D, Skibber JM, Small W, Sofocleous C, Thomas J, Venook AP, Willett C, NCCN. NCCN clinical practice guidelines in oncology. Anal carcinoma. J Natl Compr Canc Netw. 2010 Jan;8(1):106–120.