The phrase "as demonstrated initially" is correct and usable in written English.
You can use it to refer back to an earlier point or example that illustrates a concept or argument you are discussing.
Example: "The results of the experiment were consistent with our hypothesis, as demonstrated initially in the preliminary tests."
Alternatives: "as shown earlier" or "as illustrated previously".
Our results complement initial trials demonstrating that not only the conversion of CTC-counts to a favorable level of <5 CTCs, but also a percent decrease shows a prognostic value for survival in mCRPC patients as it was demonstrated initially for OS by using a proportional fall of ≥30%% of continuously assessed CTC-counts [ 11].
Right/Left K - Look as demonstrated.
Initially, as demonstrated in previous research (Stuart-Fox and Ord 2004; Stuart-Fox et al. 2004; Cummings et al. 2008; Pérez i de Lanuza et al. 2013a), our findings indicate sexual dichromatism.
First, mitochondrial biogenesis seems to be initially stimulated, as demonstrated by a rise in mitochondrial mass clearly apparent in histological studies (Fig. 2), in association with a transient increase in mtDNA levels.
According to the data published by the Gedaps group in Catalonia, glycemic control has improved progressively, as demonstrated by A1C values that initially averaged 7.7% in 1993 and later reached 6.8% in 2007 (14).
But the shift can also happen in reverse, as demonstrated by Nevada Gov. Brian Sandoval, who initially endorsed Trump before backing off earlier this month.
As demonstrated by the factor analysis, all items initially included in the ROSA were retained in the final ROSA clustered into two factors.
Cholesterol initially binds to the NTD as demonstrated biochemically (Infante et al., 2008b) and confirmed by X-ray crystallography (Kwon et al., 2009).
As demonstrated on their first release, Act of Depression, Underoath initially played a combination of hardcore and metalcore mixed with black metal and death metal.
Students initially acquired more knowledge from didactic education as demonstrated by mean gain scores (didactic: 28.39% ± 18.06; asynchronous 9.93% ± 23.22).
