gen, generation.
CL 95, 95% confidence limit.
n, number of haplotypes used in pair-wise IMa simulations.
kya, kilo years ago.
hp, Helicobacter population.
hsp, Helicobacter sub-population.
hpAfrica2 Southern Group, derived subclade of hpAfrica2, isolated mainly in San and Bantu-speakers of South Africa.
hpAfrica2 Northern Group, subgroup of hpAfrica2, isolated in San inhabitants of Namibia and Angola.
TMRCA, time to the most recent common ancestor.