Adult 2 Areca 2 Betel nut Female 2 Humans 2 Male 2 Middle Aged 2 adult 2 female 2 human 2 male 2 middle aged 2 Adolescent 1 Aged 1 Aged, 80 and over 1 Carcinoma, Squamous Cell 1 Culture 1 Disease Progression 1 Factor Analysis, Statistical 1 Family 1 Friends 1 Guam 1 Health Knowledge, Attitudes, Practice 1 Indigenous Peoples 1 Interpersonal Relations 1 Latent Class Analysis 1 Lymph node density 1 Lymphatic Metastasis 1 Mariana Islands 1 Mastication 1