![Immunogenicity of two recombinant hepatitis B vaccines in older individuals]()
Immunogenicity of two recombinant hepatitis B vaccines in older individualsThomas L. Treadwell; Emmet B. Keeffe; John Lake; Alexandra Read; Lawrence S. Friedman; Ira S. Goldman; Charles D. Howell; Maria deMedina; Eugene R. Schiff; Donald M. Jensen; Raymond S. Koff · 1993