title: [A study of retinal vascular patterns in premature infants by the trypsin digestion technique (author's transl)].
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007236:Infant, Small for Gestational Age; D012171:Retinal Vessels / Q000033:anatomy & histology*; D014357:Trypsin
chemical_list: D014357:Trypsin