However, they sometimes existed in clusters (Fig. 7b, white arrowheads) or appeared as rods (Fig. 7b, black arrow).
On Wall Street, strange financial products sometimes exist not because they are good for investors or companies, but because they offer their promoters a way to profit.
Some Western law enforcement and intelligence agencies have long pointed to what they say are the symbiotic relationships that sometimes exist between terrorist groups and narcotics traffickers, from Al Qaeda in Afghanistan and Hezbollah in the Middle East to the Revolutionary Armed Forces of Colombia, or FARC.
Unfortunately, stereotypes sometimes exist for a reason.
Our planning processes sometimes exist only on paper".
Indeed, studies of infants' brains using magnetic resonance imaging have revealed that triad symptoms sometimes exist in infants who have not suffered injuries caused by abuse.
Chris Gaskell, chairman of the science advisory council at the environment department, said the case served to "highlight the tensions that sometimes exist when advice is offered on the basis of scientific evidence and other evidence is taken into account".
In commercial forests, large and old trees sometimes exist only as widely-dispersed residual or legacy trees.
However, ambiguities sometimes exist between magmatic and, for example, isostatic rebound (e.g., Lu & Dzurisin, 2014) or hydrothermal deformation signals (e.g., Biggs et al., 2011).
First and foremost he wants to help patients for whom drugs that could prolong or improve their quality of life do sometimes exist but aren't yet "approved" and readily available.
