6%CO2 Animals 1 C57BL mouse 1 C57BL/6J and DBA/2 1 DBA mouse 1 Disease Models, Animal 1 Humans 1 Mice 1 Mice, Inbred C57BL 1 Mice, Inbred DBA 1 Panic Disorder 1 Smell 1 Species Specificity 1 animal 1 disease model 1 human 1 instability of early environment 1 interference with maternal care 1 mouse 1 mouse model of panic disorder 1 odor 1 panic 1 repeated cross-fostering 1 respiratory endophenotype 1 species difference 1 tidal volume 1 ultrasonic vocalizations 1 unrestrained plethysmograph 1