The Search for Environmental Causes of Parkinson's Disease: Moving Forward.

J Parkinsons Dis · 2018 · PMC6311360 · PMID 30584168

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

an increasing trendno p-value reported

Adding to this potential public health crisis, recent evidence, albeit preliminary and inconsistent, suggests that there is an increasing trend in PD incidence over the past a few decades [ 4 ], possibly indicating a role for environmental factors.

also in 63,971 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.