A Survey of Sensors in Healthcare Workflow Monitoring. - Rodolfo Stoffel Antunes; Lucas Adams Seewald; Vinicius Facco Rodrigues; Cristiano André da Costa; Luiz Gonzaga Jr.; Rodrigo da Rosa Righi; Andreas K. Maier; Björn M. Eskofier; Malte Ollenschläger; Farzad Naderi; Rebecca Fahrig; Sebastian Bauer 001; et al. (ACM Comput. Surv., 2018)