Adult 2 Aged 2 Aged, 80 and over 2 Article 2 Female 2 Humans 2 Male 2 Middle Aged 2 Young Adult 2 adult 2 aged 2 female 2 human 2 isolation and purification 2 lichen planus 2 major clinical study male 2 middle aged 2 very elderly 2 young adult 2 Adolescent 1 B lymphocyte 1 Burning Mouth Syndrome 1 Candida 1 Carcinoma, Squamous Cell 1 Colony Count, Microbial 1 EBER1 gene 1 EBER2 gene 1 Epstein Barr virus 1 Epstein Barr virus infection 1