Kjell Helenius

Survival in Very Preterm Infants: An International Comparison of 10 National Neonatal Networks

Kjell Helenius, Gunnar Sjörs, Prakesh S. Shah et al. · PEDIATRICS · 2017 · 208 citations · Full text

Association of early postnatal transfer and birth outside a tertiary hospital with mortality and severe brain injury in extremely preterm infants: observational cohort study with propensity score matching

Kjell Helenius, Nicholas T. Longford, Liisa Lehtonen et al. · BMJ · 2019 · 125 citations · Full text

Respiratory Management of Extremely Preterm Infants: An International Survey

Marc Beltempo, Tetsuya Isayama, Máximo Vento et al. · Neonatology · 2018 · 83 citations · Full text

International variations and trends in the treatment for retinopathy of prematurity

Brian A. Darlow, Kei Lui, Satoshi Kusuda et al. · British Journal of Ophthalmology · 2017 · 66 citations · Full text

Tympanometry in Discrimination of Otoscopic Diagnoses in Young Ambulatory Children

Kjell Helenius, Miia K. Laine, Paula A. Tähtinen et al. · The Pediatric Infectious Disease Journal · 2012 · 41 citations