The phrase "a group of broad" is not correct in written English.
It seems to be an incomplete expression, possibly intended to refer to "a group of broad topics" or "a group of broad individuals."
Example: "The conference featured a group of broad thinkers who shared diverse perspectives on the issue."
Alternatives: "a collection of wide-ranging" or "a set of diverse".
Tetracycline, any of a group of broad-spectrum antibiotic compounds that have a common basic structure and are either isolated directly from several species of Streptomyces bacteria or produced semisynthetically from those isolated compounds.
Tetracycline derivatives are a group of broad-spectrum antibiotics and were first discovered in the 1940s [19].
Distinct from specific antiviral compounds that target key viral functions are a group of broad-spectrum medicinal drugs that were originally designed for other treatments [1] [3] or targeted toward a number of viruses ([4]; reviewed in [5]).
Tetracyclines are a group of broad-spectrum antibiotics whose general usefulness has been reduced with the onset of bacterial resistance.
Trends of bacterial resistance have been shown to increase among commonly used antibiotics such as penicillins, erythromycin, and tetracycline [ 14], however the trend is variable to topical fluoroquinolones, a group of broad-spectrum bactericidal agents most frequently used as pre- and postoperative prophylaxis for ocular surgeries.
[New York Post] A gay couple recounts getting attacked on the street by a group of men in broad daylight outside Madison Square Garden.
cIntFams represent a group of IntFams with broad conservation among nematodes.
The European Union leads a group of nations favoring a broad mandate for the talks to make trade concessions more palatable domestically.
There is a different pattern when comparing a group of parasites without considering broad taxonomic identification.
So the difference between the most talented and least advanced player in a group of girls is usually broader.
In May 1998, the government and a group of states filed a separate broader complaint asserting a raft of antitrust violations.
