The phrase "and discussion by a" is correct and usable in written English.
It can be used in contexts where you are referring to a discussion that is being conducted or facilitated by a specific person or group.
Example: "The report includes findings and discussion by a panel of experts in the field."
Alternatives: "and commentary from a" or "and analysis by a".
This was a Second Life site called Brooklyn Is Watching, an unadorned island where virtual artists are invited to drop off their virtual work for scrutiny and discussion by a real-life crew of six or seven artists and critics who meet every Thursday night, salon-style, in front of an enormous flat screen at the Jack the Pelican Presents gallery in Williamsburg, Brooklyn.
Even without external peer review – and I know this from my own experience of submitting to the bioRxiv – authors are likely to take great care with preprints because they are immediately opened up for critique and discussion by a worldwide community of reviewers.
Home care workers (n=450) will be randomly assigned to one of three groups: (1) Computer-based Instruction (CBI) plus practice and discussion by a trained facilitator; (2) CBI plus small peer-group discussion; and (3) standard brochure.
These symptoms were chosen based on related articles in the literature [ 11- 13] and discussion by a panel of experts.
4 Patients were considered suitable for the study following the diagnosis of locally advanced (incurable) or metastatic disease and discussion by a multidisciplinary cancer team.
Data were then interrogated by a drafting committee, with subsequent review and discussion by a wider expert committee leading to the formulation of an updated consensus statement.
A cross-sectional descriptive survey was developed based on a review of the available literature and discussion by an expert multidisciplinary committee.
There will be a seminar and discussion by Professor Ripstein and the commentators on the third day, April 11th.
He had the ability to defuse tense meetings and discussions by cracking a joke, often against himself, along the way to resolving serious arguments.
Interviews with THC staff were conducted in their offices, and those with village doctors were conducted in their homes to facilitate open and free discussion by a sense of security, especially when people intended to discuss some sensitive topics.
Keen on talks and discussions by writers and academics, and a Lucian Freud fan.
