The style is now fixed. The updated version will appear on the repository within 30mins (check the timestamp). Update your copy of the style by re-installing it from the repository. (See here if you need instructions for installing styles in standalone.)

Styles should also update automatically within 24hs for Zotero 4.0+

Thanks for reporting - I fixed some other small issues I saw, but that style isn't super-carefully done overall, so check to make sure everything is cited correctly.

https://www.zotero.org/styles/?q=Psychological Medicine

Hi there - When inserting the reference list using Psychological Medicine - a comma appears after the title, but it should be a period.

Example as inserted into my paper:

Albert PR, François BL, & Millar AM (2011). Transcriptional dysregulation of 5-HT1A autoreceptors in mental illness, Molecular Brain 4, 21–34.

Example from Psychological Medicine Instructions for Contributors:

Brown J, Williams E, Wright H (1970). Treatment of heroin addiction. Psychological Medicine 1, 134-136.

Can it be updated?

you'll do it @zuphilip?

The style is now fixed. The updated version will appear on the repository within 30mins (check the timestamp). Update your copy of the style by clicking "Update Now" in the General tab of the Zotero preferences.

Styles also update automatically within 24hs for Zotero 4.0+
In an existing document, you may have to switch to a different style and back for the changes to take effect once the style is updated.
Any further problems please let us know & thanks for reporting.

Hi everyone,
When I insert the reference list using Psychological Medicine - an & sign appears when there is more than one author, while there should not be (only comma).

Example from Psychological Medicine Instructions for Contributors:

Brown J, Williams E, Wright H (1970). Treatment of heroin addiction. Psychological Medicine 1, 134-136.

Example in my paper as inserted:

Beck AT, & Rector NA (2003). A cognitive model of hallucinations. Cognitive Therapy and Research 27, 19–52.

Bentall RP, de Sousa P, Varese F, Wickham S, Sitko K, Haarmans M, & Read J (2014). From adversity to psychosis: Pathways and mechanisms from specific adversities to specific symptoms. Social Psychiatry and Psychiatric Epidemiology 49, 1011–1022.

while it should be:

Beck AT, Rector NA (2003). A cognitive model of hallucinations. Cognitive Therapy and Research 27, 19–52.

Bentall RP, de Sousa P, Varese F, Wickham S, Sitko K, Haarmans M, Read J (2014). From adversity to psychosis: Pathways and mechanisms from specific adversities to specific symptoms. Social Psychiatry and Psychiatric Epidemiology 49, 1011–1022.

Can this style be further updated?

The style is now fixed. The updated version will appear on the repository within 30mins (check the timestamp). Update your copy of the style by clicking "Update Now" in the General tab of the Zotero preferences.

Note that I fixed only the first issue; I think you're mistaken about the 2nd one (the sort order):
1) the guidelines explicitly say and provide an example to sort alphabetically, which includes the 2nd author (i.e. F before H in your example)
2) In the example I looked at, the sort order was from earliest to latest year, e.g. the Holmes & Pizzagalli reference here: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/5BD739C6507511C446272E93301076BA/S0033291716002786a.pdf/transdiagnostic_perspective_on_obsessivecompulsive_disorder.pdf

Styles also update automatically within 24hs for Zotero 4.0+
In an existing document, you may have to switch to a different style and back for the changes to take effect once the style is updated.
Any further problems please let us know & thanks for reporting

So excited that there is a style for this journal - thanks maintainers!

I think I've found a problem with the book section citation style. The journal's example (from https://www.cambridge.org/core/journals/psychological-medicine/information/instructions-contributors#submission) is:

Brown GW (1974). Meaning, measurement and stress of life events. In Stressful Life Events: Their Nature and Effects (ed. B. S. Dohrenwend and B. P. Dohrenwend), pp. 217-244. John Wiley: New York.

Current Zotero style gives:

Brown GW (1974). Meaning, Measurement and stress of life events. In Stressful Life Events: Their Nature and Effects Eds BS Dohrenwend & BP Dohrenwend, pp217–244. John Wiley: New York.

So:
-ed. statement should be in parentheses
-editor initials should have periods
-should be a period and space between 'pp' and page numbers
-eds names should be separated by and not &

Forum won't reproduce italics/bold but that all looks fine.

Dear moderators,

The Zotero style for Psychological Medicine does not seem to match the author guidelines set forth by the journal itself in a number of ways: https://www.cambridge.org/core/journals/psychological-medicine/information/instructions-contributors

An example from the journal's website:
Light, M. A., & Light, I. H. (2008). The geographic expansion of Mexican immigration in the United States and its implications for local law enforcement. Law Enforcement Executive Forum Journal, 8, 73–82. doi:XXX

An example from the Zotero style:
Hisakata R, Nishida S, Johnston A (2016). An adaptable metric shapes perceptual space. Current Biology 26, 1911–1915.

Bibliography differences:
- a period after each initial
- ampersand before the last author's name (led by a comma in case of more than 2 authors)
- comma after the journal title
- doi at the end or, if unavailable: Retrieved from http://xxxx
- nothing in bold, journal title and volume in italics
- max 7 author names. See example:

Gilbert, D. G., McClernon, F. J., Rabinovich, N. E., Sugai, C., Plath, L. C., Asgaard, G., ... Botros, N. (2004). Effects of quitting smoking on EEG activation and attention last for more than 31 days and are more severe with stress, dependence, DRD2 A1 allele, and depressive traits. Nicotine and Tobacco Research, 6, 249–267. doi:XXX

In-text citation differences:
- Parenthetical format: a comma precedes the publication year
- All authors names are mentioned on first appearance in the text up to a maximum of five names. For one work with six or more authors only the first name is mentioned followed by et al., year

Would it be possible to update the zotero style to match the author guidelines?

Yes, those instructions are definitely not what the journal uses (you can even see the journal's actual style higher up on the page when they cite their statistical guidelines by Altman DG., Gore SM, Gardner, MJ. Pocock SJ.). I submitted a paper there recently, and it was sent back when submitted in APA style rather than the journal's style.

It's possible that they have changed their submission guidelines in the last few months and are intending to change to APA style, but it would be odd for them to switch to APA 6th edition instead of 7th edition. If you like, could you contact the journal to inquire if they are intending to change their journal style?

Like I said, I suspect that the website is wrong or outdated. The journal doesn’t use APA style in publication, and I recently had a paper sent back when I submitted it using APA style instead of the Psychological Medicine Style. I suggest you use the Psychological Medicine style.

Hi maintainers,

Thanks for all your work on style edits. I'm using the style from Zotero's selection and noticed it does not line up with current guidelines (or current published works).

https://www.cambridge.org/core/journals/psychological-medicine/information/author-instructions/preparing-your-materials

Specifically it has over 7 names in the reference list and does not display doi's. In text, it does not list all authors in first citation (up to 6).

Is it possible to have it reviewed?

Thank you!!

Yeah bizarrely they adopted a version of APA that’s 6 years out of date ?

Thank you everyone, saved me a editing nightmare! :)