The endoscopic modified lothrop procedure: Review of single institution experience and long-term outcomes.

Furthermore, while a previous study had shown an association between allergy and frontal neo‐ostium obstruction, we only observed a trend toward significance in these patients ( p = 0.08). 10 The retrospective, single‐institution nature of this longitudinal study contributes to its inherent limitations, given that practice biases can be introduced and follow‐up may not be uniform.

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