Make the following changes: Last paragraph in SPCU Usage Note: Current: As SPCU can be context-specific, on rare occasions there may be more than one concurrent SPCU for a patient. For example, there could be multiple procedure results, each identifying a context specific SPCU determination used to set the normal range used. For example an SPCU value and linked comment or specific observation could be summarized as “male, based on hormonal measurement.” New: The model supports multiple instances of SPCU to allow, when necessary, more than one concurrent SPCU for a patient. For example, there could be multiple procedure results, each identifying a context specific SPCU determination used to set the normal range used. For example an SPCU value and linked comment or specific observation could be summarized as “male, based on hormonal measurement.” Cardinality paragraph: Current: Cardinality : 0..n, expected to be zero unless in a clinical context. New: Cardinality : 0..n. Multiple instances of an SPCU can exist and each instance will have the attributes listed below.