title: Methodological Remarks Regarding the Meta-Analysis on Possible Associations of Maternal Factors During Pregnancy With the Risk of Childhood Acute Lymphoblastic Leukemia.
authors.affiliation: Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece.
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Thomopoulos
authors.affiliation: Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece.
authors.forename: Theodoros N
authors.initials: TN
authors.lastname: Sergentanis
authors.affiliation: Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece.
authors.forename: Maria A
authors.initials: MA
authors.lastname: Karalexi
authors.affiliation: Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece.
authors.forename: Eleni Th
authors.initials: ET
authors.lastname: Petridou
mesh_terms: D001722:Birth Order; D004493:Education; D005260:Female; D006801:Humans; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000209:etiology*; D011247:Pregnancy; D012907:Smoking / Q000009:adverse effects*