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Weatherall DJ, Clegg JB.Weatherall DJ, et al. Among authors: clegg jb.Philos Trans R Soc Lond B Biol Sci. 1975 Aug 7;271(913):411-55. doi: 10.1098/rstb.1975.0061.Philos Trans R Soc Lond B Biol Sci. 1975.PMID: 240178Review.