The SENIEUR protocol and the efficacy of hepatitis B vaccination in healthy elderly persons by age, gender, and vaccine route oleh Robert Edelman, Meagan E. Deming, Franklin R. Toapanta, Mark D. Heuser, Lisa Chrisley, Robin S. Barnes, Steven S. Wasserman, William C. Blackwelder, Barry S. Handwerger, Marcela Pasetti, Khan M. Siddiqui, Marcelo B. Sztein