Perfidious feminine faces.
D002653:Child Behavior Disorders; D005149:Facial Expression; D006801:Humans; D008425:Maternal Behavior; D009633:Nonverbal Communication; D010287:Parent-Child Relations; D012737:Sex Factors; D012923:Social Class; D012959:Socioeconomic Factors; D013637:Tape Recording; D013690:Television