http://www.nature.com/nature/journal/v239/n5369/pdf/239231a0.pdf4 K1 E( V$ x8 s7 f# X% R$ S* S0 @' c) G, l
Culture of Cells from the Urine of Newborn Children 1 M3 B% Z: m: f" e( TNature 239, 231 (22 September 1972) | doi:10.1038/239231a0* |# r7 T0 a B" S4 j. ^: Z* f
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