It is funny that hospitals that treat patients by using the most advanced medical devices do not use 4 or 9 as room numbers.
teacherJapan It is funny that hospitals that treat patients by using the most advanced medical devices do not use 4 or 9 as room numbers. I don't see the sense of it, and I don't believe it, but that aside, I would drop "by": It is funny that hospitals that treat patients using the most advanced medical devices do not use 4 or 9 as room numbers.
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teacherJapanIt is funny that hospitals that treat patients by using the most advanced medical devices do not use 4 or 9 as room numbers.
I don't see the sense of it, and I don't believe it, but that aside, I would drop "by":
It is funny that hospitals that treat patients using the most advanced medical devices do not use 4 or 9 as room numbers.