title: Childhood tumors and parental occupational exposures.
mesh_terms: D001932:Brain Neoplasms / Q000209:etiology*; D002140:California; D002648:Child; D002675:Child, Preschool; D003710:Demography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D009790:Occupations; D011159:Population Surveillance; D011247:Pregnancy; D012042:Registries; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires