Invictus in the literature Peer Review Articles Hutchinson G, Wilson PS, Sommerfeldt SD, Ahmad K. Incubator-based active noise control device: comparison to ear covers and noise reduction zone quantification. Pediatric Research. 2023;94(5):1817-23. Hutchinson G, Du L, Ahmad K. Incubator-based Sound Attenuation: Active Noise Control In A Simulated Clinical Environment. PLOS ONE. 2020;15(7):e0235287. White Paper Uncompensated Care Costs In Hospitals with NICUs