Fullformexpand.com, 2026. "PRP-D." Accessed May 1, 2026. https://www.fullformexpand.com/prp-d/polyribosylribitol-phosphate-diphtheria-conjugate-hib-vaccine-no-longer-available.
"PRP-D." (n.d.). Fullformexpand.com. Retrieved May 1, 2026, from https://www.fullformexpand.com/prp-d/polyribosylribitol-phosphate-diphtheria-conjugate-hib-vaccine-no-longer-available.
PRP-D. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/prp-d/polyribosylribitol-phosphate-diphtheria-conjugate-hib-vaccine-no-longer-available (Accessed: 1 May 2026).