Giannakopoulos G, Agapidaki E, Dimitrakaki C, Oikonomidou D, Petanidou D, Tsermidou L, Kolaitis G, Tountas Y, Papadopoulou K. Early childhood educators’ perceptions of preschoolers' mental health problems: a qualitative analysis. Ann Gen Psychiatry. 2014;13(1):1.