MCM9 and cancer: The minichromosome maintenance 8 homologous recombination repair factor (MCM8; NM_032485.6, ENST00000610722.4, OMIM: 608187) and minichromosome maintenance 9 homologous recombination repair factor (MCM9; NM_017696.3, ENST00000619706.5, OMIM: 610098) genes are two recently suggested cancer predisposition genes.2