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Fig. 5. Temperature changes during the delivery of cold proficiency test materials. (A) The delivery box was arrived about 27 hours later, and the temperature inside of delivery box was maintained between 2℃ and 8℃. (B-D) The delivery boxes were arrived about 44 hours later, and the temperature was increased above 8℃ from 36 hours after delivery started (→: arrival time).
Lab Med Qual Assur 2022;44:55~60 https://doi.org/10.15263/jlmqa.2022.44.1.55
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