Int. j. environ. res. public health Int. j. environ. res. public health Role of maternal diet in the risk of childhood acute leukemia: a systematic review and meta-analysis Blanco-López Jessica Iguacel Isabel Universidad de Zaragoza Pisanu Silvia Almeida Claudia Choma Bettega Steliarova-Foucher Eva Sierens Ciska Gunter Marc J. Ladas Elena J. Barr Ronald D. Van Herck Koen Huybrechts Inge 2023 research-article