Exact(4)
Earlier references to it are lacking, but the art probably evolved over a considerable period from the necessary trimming, pruning, and training of trees.
But evidence in the medical literature to support the belief has been limited and there has been debate over the cost effectiveness of screening for glaucoma, primarily because sufficient data to resolve it are lacking.
Cannabis's medical use was last reviewed comprehensively by the World Health Organization in 1965, with no subsequent follow-up to challenge the notion that medical efficacy data for it are lacking.
Although anthrax antitoxin has a role in treatment for systemic anthrax, data on the optimal time to initiate it are lacking, and the opinions of expert panelists were mixed on this issue.
Similar(56)
Juncker acknowledged the European Union was in a bad state, saying "it is lacking Europe and it is lacking Union".
But what it's lacking is its narrative, its story.
It is lacking in balance.
It's lacking!
What it is lacking is consistency.
It was lacking and yet complex.
The one thing it was lacking, it seemed, was captions.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com