Hiroshi, Don't Sniffle Your Nose!
― Why Only Humans Sniffle, and Only Humans Get Sinusitis ―
(Iruka ENT Books)
Written by Yoshimasa Kojima
Illustrated by Fumi Nakagawa
When you sniffle, where does that mucus actually go? It goes straight into your sinuses. Humans are the only ones who sniffle — and humans have an unusually high rate of sinusitis. Dogs, cats, and other wild animals catch colds too. But they never sniffle. This picture book explains, in a way even children can understand, the connection between sniffling and sinusitis.
Tympanic Membrane Regeneration Image Collection
― How Far Can ReTympa Regenerate the Eardrum? ―
(Iruka ENT Books)
Written by Yoshimasa Kojima
Over the five years from October 2020 to September 2025, Iruka ENT Clinic performed tympanic membrane regeneration surgery in 136 cases. Among these, this collection presents intraoperative and postoperative findings from the 32 cases with large perforations.