title: The effect of neonatal complications in same-sexed premature twins on their mothers' preference.
mesh_terms: D000328:Adult; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases; D008297:Male; D009034:Mother-Child Relations; D009035:Mothers / Q000523:psychology*; D009769:Object Attachment; D011247:Pregnancy; D014427:Twins