More cards in this set

Card 6

Front

What did Downer (1961) do/find?

Back

Preview of the front of card 6

Card 7

Front

What did Hermanns et al (1993) do/find?

Back

Preview of the front of card 7

Card 8

Front

What did Swantje et al (2012) do/find?

Back

Preview of the front of card 8