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There are four lines on the infusion bottle, the parts which
are lower than liquid medicine will become easy to observing
through refraction effect. It’s convenient for the patients who
need to observe the liquids medicine themselves and to call
nurse for helping pull out needles
Shandong University.
Ji'nan, China
Gen Li,
Shandong University.
Yuke Yan,
Shandong University.
Zezhong Dai,
Shandong University.
Lian Cui,
Shandong University.
