title: Fine-needle aspiration biopsy in the diagnosis of pediatric tumors.
authors.forename: L J
authors.initials: LJ
authors.lastname: Layfield
mesh_terms: D000367:Age Factors; D001707:Biopsy, Needle / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011247:Pregnancy