[Obstruction of the lacrimal apparatus in premature infants].
D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases; D007765:Lacrimal Apparatus; D007766:Lacrimal Apparatus Diseases
INFANT, PREMATURE/diseases; LACRIMAL APPARATUS/diseases