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Newgreen DF, Allan IJ, Young HM, Southwell BR.Newgreen DF, et al. Among authors: southwell br.Wilehm Roux Arch Dev Biol. 1981 Nov;190(6):320-330. doi: 10.1007/BF00863269.Wilehm Roux Arch Dev Biol. 1981.PMID: 28305291