The phrase "a doubtful case" is correct and usable in written English.
It can be used when referring to a situation or scenario that is uncertain or questionable in nature.
Example: "The evidence presented in court made it clear that this was a doubtful case, leaving the jury with many unanswered questions."
Alternatives: "a questionable case" or "an uncertain case".
Joan Miro Personage Throwing a Stone at a Bird (1926) The Miro-cosmos, that swarming phantasmagoria of insects, sperms, eyes, paper decorations, dots, whiskers, amoebae, stars and blobs, is perhaps a doubtful case.
A score of 7 or less indicates a non-case, a score of 8-10 a doubtful case, and 11 or more a definite case [ 54].
In a few doubtful cases, additional immunocytochemistry confirmed the epithelial origin of the tumours.
A final step of manual curation was carried out for each doubtful case.
Cutoff scores used were those commonly used (Herrmann, 1997), specifically: <7 – non-case, 8 10 – doubtful case, ⩾11 – definite case.
In addition, 2.8% (N = 14) were categorized as "doubtful case subjects" and 13.6% (N = 68) as "noncase subjects".
In doubtful cases, a repeat study after a due interval may be needed.
The intensity of immunohistochemical reactions was appraised independently by two pathologists; in doubtful cases, a re-evaluation was performed using a double-headed microscope.
Although dermoscopy 23, 24 in trained hands is a good noninvasive choice, it must be remembered that in doubtful cases, a biopsy is probably the only certain way of confirming dysplasia.
The WHO definition of suicide attempt used in this trial also leaves room for interpretation; although a blinded external evaluation committee examined doubtful cases in detail, a small number of false positives was unavoidable, especially since the medical records in some cases provided limited information.
The solution he proposes shows how much quotas could change Brazilians' sense of who they are: in doubtful cases a commission would verify students' racial identity, overthrowing the idea that a person's race is what he says it is.Rio's quotas may now be scaled back (to 20% for blacks and 20% for public-school students) but the principle is taking hold.
