Pathologists (and trainee pathologists) and other medical specialists can retrieve excerpts. Epidemiologists, health scientists and biomedical scientists can also retrieve data. However, PALGA does recommend that such applicants involve a pathologist in their application. A pathologist is best placed to judge which diagnostic terms should be used in searches. Pathologists can also explain to their fellow applicants how requests should be structured and how data from PALGA's database should be interpreted. In principle, the pathologist is also the individual with whom all correspondence is conducted. Direct consultation with co-applicants is, of course, also possible.

Even if no pathologist is involved, requests will still be processed. In situations such as these, PALGA’s consultants can (if required) still mediate in the process of involving a pathologist in the request. Requests in which no pathologist is involved will be subject to higher charges.