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AK-g3m_0061
MR / Schenectady, New York. Elmer Avenue School (urban public elementary school). Two students (boys, age 9) stand back to back to measure their difference in height. They are the same age but show maturational differences in body development. MR: Sze6, Kel2. ID: AK-g3m. ©Ellen B. Senisi
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