Bonding as perceived by mothers of twins.
D000328:Adult; D001724:Birth Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D009034:Mother-Child Relations; D009035:Mothers / Q000523:psychology*; D009769:Object Attachment; D011247:Pregnancy; D014427:Twins / Q000523:psychology*