title: The effects of mothers' presence and previsits on children's emotional reaction to starting nursery school.
mesh_terms: D000223:Adaptation, Psychological; D000367:Age Factors; D001010:Anxiety, Separation; D001143:Arousal; D002652:Child Behavior; D004644:Emotions; D005260:Female; D006126:Group Processes; D006801:Humans; D008297:Male; D008425:Maternal Behavior; D009769:Object Attachment; D012578:Schools, Nursery; D012923:Social Class; D013997:Time Factors