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fraternal twins |
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In that population of identical and fraternal twins, 447 individuals had CFS and another 1,120 reported disabling fatigue without four of the other symptoms. The only boy-girl set, Ariana and Frankye Cruz, 4 days old today, are also the only fraternal twins in the bunch. Author Nancy Segal is Professor of Psychology of the Twin Studies center at CSU Fullerton: her professional career has been devoted to the study of identical and fraternal twins, and INDIVISIBLE BY TWO: LIVES OF EXTRAORDINARY TWINS reflects this long history, following up on her ENTWINED LIVES to reveal the lives of 10 sets of twins, one set of triplets and a set of quads. |
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