title: Sternomastoid tumour in preterm infants.
mesh_terms: D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases; D008416:Mastoid; D009135:Muscular Diseases; D009369:Neoplasms; D013249:Sternum