Quality improvement bundles to decrease hypothermia in very low/extremely low birth weight infants at birth: a systematic review and meta-analysis 1Department of Neonatology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China 2Department of Neonatology, Shenzhen Guangming District People’s Hospital, Shenzhen, Guangdong, China DOI 10.7717/peerj.18425...