[R] Help with package EasyPubmed

bharat rawlley bh@r@t_m_@|| @end|ng |rom y@hoo@co@|n
Tue Aug 3 20:20:52 CEST 2021

When I try to run the following code using the package Easypubmed, I get a null result - 
> batch_pubmed_download(query_7)
#query_7 <- "Cardiology AND randomizedcontrolledtrial[Filter] AND 2011[PDAT]"
However, the exact same search string yields 668 results on Pubmed. 

I am unable to figure out why this is happening. If I use the search string "Cardiology AND 2011[PDAT]" then it works just fine. 
Any help would be greatly appreciated
Thank you! 

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