1. Memorial University; School of Nursing; H2916, Health Sciences Centre 300 Prince Philip Drive St. John's Newfoundland Canada A1B 3V6
2. Institute of Science and Technology, UNESP - Univ Estadual Paulista; Department of Biosciences and Oral Diagnosis; São José dos Campos SP Brazil
3. Department of Nursing, UNESP - Univ Estadual Paulista; Botucatu Brazil
4. Botucatu Medical School, UNESP - Univ Estadual Paulista; Clinical Medicine; Distrito de Rubião Junior, s/n Botucatu São Paulo Brazil 18618-900