The phrase "a supposed link between" is correct and usable in written English.
It can be used when discussing a connection or relationship that is claimed or believed to exist, but may not be proven or widely accepted.
Example: "The researchers investigated a supposed link between diet and mental health, although the evidence was inconclusive."
Alternatives: "an alleged connection between" or "a claimed relationship between".
Worries about a supposed link between the measles-mumps-rubella (or MMR) vaccine and autism have been utterly discredited.
The experiment involved conducting two health surveys, called the 'experimental' and the 'control', which were identical in every way except that researchers made a reference to a supposed link between childhood and adult health at the experimental survey briefing.
The murder of dozens of Iraqi Army recruits over the weekend is being attributed to the forces of Abu Musab al-Zarqawi, who has been identified by the Bush administration as a leading terrorist and a supposed link between Iraq and Al Qaeda.
By 2013, when 84% of children aged 12 months or less received a dose of the vaccine, the death toll had fallen to 145,700.But worries about a supposed link between the measles-mumps-rubella (or MMR) vaccine and autism, though scientifically discredited, have led to a drop in immunisation rates in the rich world over the last ten years.
One might read the argument simply as cutting a supposed link between the empirical success of scientific theory and successful reference or approximate truth, as opposed to an enumerative induction per se.
The public scare regarding a supposed link between the MMR vaccine and autism was unfounded and caused great damage.
Oppositions parties also play up a supposed link to Obama.
The makers of a controversial documentary about the supposed link between the MMR vaccine and autism have hit back at criticism from the scientific community after the film was pulled from Robert De Niro's Tribeca film festival.
What has been obvious to skeptics for years has finally become obvious to all: The supposed link between vaccines and autism is a sham perpetrated in the name of litigation.
"The real problem, clinically, is how does a doctor reach the decision about whether a diagnosis of cannabis-induced psychosis should be given?" The supposed link between cannabis and psychosis has existed for decades, utilised by governments throughout the world to curb use.
Empirical studies also supported the supposed link between the existence of valuable natural resources and a higher risk of civil war.
