Problems arising in estimating from retrospective survey data the latent periods of juvenile cancers initiated by obstetric radiography.
D000310:Adrenal Gland Neoplasms / Q000453:epidemiology; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006413:Hematopoietic System / Q000528:radiation effects; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007953:Leukemia, Radiation-Induced / Q000453:epidemiology; D009381:Neoplasms, Radiation-Induced / Q000453:epidemiology*; D011247:Pregnancy / Q000528:radiation effects; D011859:Radiography / Q000009:adverse effects; D012189:Retrospective Studies; D013997:Time Factors