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If you have ever wondered what the FEV1/FVC ratio stands for, this is the episode for you...
(hint: if you need to fall asleep, this episode is better than Ambien)
By Hayden SchoefflerIf you have ever wondered what the FEV1/FVC ratio stands for, this is the episode for you...
(hint: if you need to fall asleep, this episode is better than Ambien)