Chang, Yuli; Brewer, Noel T.; Rinas, Allen C.; Schmitt, Karla; Smith, Jennifer S. (July 2009). "Evaluating the impact of human papillomavirus vaccines". Vaccine. 27 (32): 4355–62. doi:10.1016/j.vaccine.2009.03.008. PMID19515467.
Liesegang, Thomas J. (August 2009). "Varicella zoster virus vaccines: effective, but concerns linger". Canadian Journal of Ophthalmology. 44 (4): 379–84. doi:10.3129/i09-126. PMID19606157.
Liesegang, Thomas J. (August 2009). "Varicella zoster virus vaccines: effective, but concerns linger". Canadian Journal of Ophthalmology. 44 (4): 379–84. doi:10.3129/i09-126. PMID19606157.
Lombard, Murielle; Pastoret, Paul-Pierre; Moulin, Anne-Marie (2007). "A brief history of vaccines and vaccination". Revue scientifique et technique (International Office of Epizootics). 26 (1): 29–48. doi:10.20506/rst.26.1.1724. PMID17633292.
Chang, Yuli; Brewer, Noel T.; Rinas, Allen C.; Schmitt, Karla; Smith, Jennifer S. (July 2009). "Evaluating the impact of human papillomavirus vaccines". Vaccine. 27 (32): 4355–62. doi:10.1016/j.vaccine.2009.03.008. PMID19515467.
Liesegang, Thomas J. (August 2009). "Varicella zoster virus vaccines: effective, but concerns linger". Canadian Journal of Ophthalmology. 44 (4): 379–84. doi:10.3129/i09-126. PMID19606157.
Liesegang, Thomas J. (August 2009). "Varicella zoster virus vaccines: effective, but concerns linger". Canadian Journal of Ophthalmology. 44 (4): 379–84. doi:10.3129/i09-126. PMID19606157.
Lombard, Murielle; Pastoret, Paul-Pierre; Moulin, Anne-Marie (2007). "A brief history of vaccines and vaccination". Revue scientifique et technique (International Office of Epizootics). 26 (1): 29–48. doi:10.20506/rst.26.1.1724. PMID17633292.