It has disproved the notion that elderly patients cannot understand a philosophical concept such as existential well-being.
Conversely, in societies with corporate descent groups, genealogical exceptions to rules of descent need not disprove the rule.
Removing these dates from their analysis does not disprove their conclusions, but it does reduce their corroborative evidence.
In the end it could neither be proved nor disproved.
Where there is a lack of systematic record keeping, it is difficult for the manager to prove or disprove the legality of their activities.
However, further studies are needed to develop, or disprove, a link between telomeres, cell replication and longevity.
Such broad conditions, it seems to me, do more to disprove the correlation than to corroborate it.
The lack of intermediate composition probably is problematic to the fractionation model, although this does not in itself disprove the hypothesis.
