For example, a histogram of mean platelet counts of IMPC mice is available on the IMPC thrombocytopenia page which demonstrates that the Thpo knockout strain has the lowest mean platelet count of any strain characterised at UC-Davis (Fig. 5) (www.mousephenotype.org/data/phenotypes/MP:0003179). The gene discussed is THPO; the disease is Thrombocytopenia.