Created by Jessica Phillips
over 9 years ago
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Schaffer and Emerson (1964)
Dollard and Miller (1950)
Grossmann and Grossmann (1991)
Takahashi (1990)
Bifulco et al (1992)
Bohman and Sigvardsson (1979)
Quinton et al (1984)
Van IJzendoorn and Kroonenberg
Hodges and Tizard (1989)