{Reference Type}: Editorial {Title}: Could irritability be the key to unlocking the enigma of mixed states? {Author}: Bell E;Boyce P;Porter RJ;Bryant RA;Malhi GS; {Journal}: Bipolar Disord {Volume}: 22 {Issue}: 8 {Year}: 12 2020 {Factor}: 5.345 {DOI}: 10.1111/bdi.13029 {Abstract}: