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Table 3 Triplet sex and zygosity

From: Birth weight in a large series of triplets

  FFF MFF MMF MMM Total zygosity
MZ 23 - - 23 46 (10%)
DZ 32 31 32 28 123 (26%)
TZ 31 106 125 34 296 (64%)
Total sex: 86 137 157 85 465
  1. MZ = monozygotic; DZ = dizygotic; TZ = trizygotic; FFF = trio of three females; MFF = trio of 1 male and 2 females; MMF = trio of 2 males and 1 female; MMM = trio of three males.