Self-reported morbidity among health care night workers - Vasconcelos, Suleima Pedroza; Marqueze, Elaine Cristina; Fischer, Frida Marina; Moreno, Claudia Roberta de Castro (Boo of abstracts and program [of] 20th International Symposium on Shiftwork and Working Time: biological mechanisms, recovery and risk management in the 24h society, 2011)