SLCO1B3 and spindle cell hemangioma: The molecular weight of OATP1B3 observed in human SCH (Fig 3A and S3 Fig) is similar to that described previously in human hepatocytes and human liver tissues [40], and is also similar to OATP1B3-expressing HEK293 stable cell lines (Fig 2B middle panel and S3A Fig, right panel).