Table I.

Coding of experimental groupsa

Baby MiceBreastfed byBorn from
NoMo/NoBaNormalNormal
AsMo/AsBaAsthmaticAsthmatic
NoMo/AsBaNormalAsthmatic
AsMo/NoBaAsthmaticNormal
  • a A summary of the coding system used to label different experimental groups is shown. The groups of baby mice were coded according to two variables: the mother who nursed them (normal or asthmatic), and the mother from which they were born (normal or asthmatic).