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Arterial pressure in C57BL/6 and DBA/2J mice. Left: hour-long traces of iliac arterial pressure were stable over the duration of a typical MRI study (≈1 hour) with isoflurane administered at 1.6%. Right: mean arterial pressure in old C57 mice was not different from that in old DBA mice. P > 0.05, unpaired t-test.
