Yang, Lijuan Intracavitary electrocardiogram guidance for placement of peripherally inserted central catheters in premature infants. [electronic resource] - Medicine Dec 2019 - e18368 p. digital Publication Type: Journal Article; Observational Study ISSN: 1536-5964 Standard No.: 10.1097/MD.0000000000018368 doi Subjects--Topical Terms: Catheterization, Central Venous--methodsCatheterization, Peripheral--methodsElectrocardiography--methodsFemaleHumansInfantInfant, Extremely Low Birth WeightInfant, Extremely PrematureInfant, NewbornMaleRadiography, Thoracic