The phrase "already been identified although" is not correct as it stands and is incomplete in written English.
It can be used when introducing a contrast or exception after stating that something has been identified, but it needs to be part of a complete sentence.
Example: "The issues have already been identified, although further investigation is required."
Alternatives: "already been recognized, yet" or "already been noted, although".
Three of the clusters had already been identified in previous studies, although the genetic diversity observed within each of them was much higher in the present study.
Otherwise, one should focus on longer-term interventions that address the more stable psychological traits that have already been identified as risk factors (although differentiating causal from non-causal risk factors remains to be determined).
This protein has already been identified in RA [ 69] although not described earlier in the context of SpA.
Although APLP1 has already been identified as a BACE1 target [26], [46], its validation was of interest because APLP1 is expressed primarily in the central nervous system [47], and its shed ectodomain was unexpectedly identified here by mass spectrometry in the epithelial HEK and HeLa cell lines (Table 1).
Although many miRNAs have already been identified, their predicted target genes need to be fully researched and functionally characterized.
Although numerous regulatory ncRNAs have already been identified, the number of experimentally verified targets is much smaller.
The function of PPARα is strictly connected to the function of its target genes and, although many of these have already been identified, major elements of its physiological function remain to be uncovered.
When Mehdi Nemmouche killed four people with a Kalashnikov at Brussels Jewish Museumm in May 2014, the French national had already been identified through the databases that are the heart of the Schengen system, although inadequately exploited.
Type 2 diabetes is becoming more prevalent throughout the world, and although a number of conventional risk factors have already been identified, they can only partly explain such high levels of incidence.
