I) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Ilkka Kalliala, Seppo Heinonen. Daily patient flow unevenness in different sized delivery hospitals – An 11-year register study of 610 227 deliveries (European Journal of Obstetrics and Gynecology and Reproductive Biology 2021)
II) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Ilkka Kalliala, Seppo Heinonen. Busy day effect on the use of obstetrical interventions and epidural analgesia during labour: A cro…
I) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Ilkka Kalliala, Seppo Heinonen. Daily patient flow unevenness in different sized delivery hospitals – An 11-year register study of 610 227 deliveries (European Journal of Obstetrics and Gynecology and Reproductive Biology 2021)
II) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Ilkka Kalliala, Seppo Heinonen. Busy day effect on the use of obstetrical interventions and epidural analgesia during labour: A cross-sectional register study of 601 247 deliveries (BMC Pregnancy and Childbirth 2022)
III) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Seppo Heinonen. Busy day effect in delivery hospitals and adverse maternal outcomes – A population-based study of 601 247 singleton deliveries (BMC Pregnancy and Childbirth 2021)
IV) Riitta Vilkko, Sari Räisänen, Mika Gissler, Vedran Stefanovic, Ilkka Kalliala, Seppo Heinonen. Busy day effect on adverse obstetric outcomes using a nationwide ecosystem approach: Cross‐sectional register study of 601 247 hospital deliveries (BJOG 2023)
V) Riitta Vilkko, Seppo Heinonen, Sari Räisänen, Mika Gissler, Sture Andersson, Markus Leskinen. Effect of delivery hospital busyness on early mortality in small preterm infants: a Finnish population-based cohort study in 2006-2016 (BMJ Open 2025)