Typon "ml" should be "mL" CHAT manual laboratory for clinical biomedical research 4.3.4 Centrifugation - Serum, two corrections needed "1.5 ml red-top cryovials # 2 – 9 in 0.5 ml aliquots" should be "1.5 mL red-top cryovials # 2 – 9 in 0.5 mL aliquots"
https://www.sleepdata.org/datasets/chat/pages/manuals/laboratory-for-clinical-biomedical-research/4-03-04-centrifugation-serum.md
Typon "ml" should be "mL" CHAT manual laboratory for clinical biomedical research 4.3.4 Centrifugation - Serum, two corrections needed "1.5 ml red-top cryovials # 2 – 9 in 0.5 ml aliquots" should be "1.5 mL red-top cryovials # 2 – 9 in 0.5 mL aliquots"