In November 2022, Stanford Medicine Clinical Laboratory announced that study-specific laboratory reference ranges would not be provided. To support and elaborate on the information in the November memo, Spectrum published MEM-011 Clinical Laboratory Reference Ranges. This memo may be provided to study sponsors, as needed, to explain that study-specific clinical laboratory normal range lists are not provided. SU approval is not required to share this memo outside Stanford. It is a good practice to make study sponsors aware of this information in the study start-up stage.