Shift work and sex are variants across Karolinska Sleep Questionnaire and the application of linking analysis as a step forward using Item Response Theory - Santos, Kleber dos; Fischer, Frida Marina; Andrade, Dalton Francisco de; Barbetta, Pedro Alberto; Cardoso, Maria Regina Alves; Vilela, Rodolfo Andrade de Gouveia (Chronobiology International (Online), 2019)