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. 2009 Aug 6;4(8):e6540. doi: 10.1371/journal.pone.0006540

Table 5. Associations between reduced sperm counts and the most common MTRR haplotypes.

Haplotype	Frequency	Cases (alleles)		Controls (alleles)		Chi²	p
		n	%	n	%
GC	0.352	165	33.02	78	34.12	0.032	0.8580
GT	0.270	125	24.98	61	26.84	0.199	0.6556
AC	0.229	109	21.78	49	21.58	0.021	0.8860
AT	0.149	73	14.62	30	13.07	0.393	0.5310