1. Data snapshot: errors involving methotrexate Publication: [Harrisburg, Pa.] : Pennsylvania Patient Safety Authority, c2011 Subject(s): Antimetabolites, Antineoplastic -- administration & dosageAntimetabolites, Antineoplastic -- adverse effectsMedication ErrorsMethotrexate -- administration & dosageMethotrexate -- adverse effectsData CollectionNeoplasms -- drug therapyHumansUnited States