The phrase "attained subsequently" is correct and usable in written English.
It can be used to indicate that something was achieved or reached after a certain point in time or event.
Example: "The goals set for the project were not only ambitious but were also attained subsequently after extensive collaboration among team members."
Alternatives: "achieved later" or "reached afterward".
It was found that maximal antibody concentrations (Cmax) in the bloodstream were attained (and subsequently defined as 100% concentrations) 14 hours after injection of both antibodies.
However, threshold quality is essentially an entry-level concept — once the entry requirements are met, quality is assumed to have been attained and subsequently sustained.
The 100 GPa (megabar) mark was surpassed in December 1975 by the geophysicists Ho-kwang Mao and Peter M. Bell, both of the Geophysical Laboratory of the Carnegie Institution of Washington, in Washington, D.C., where they subsequently attained diamond-cell pressures of approximately 300 GPa.
Venizélos made Greece a participant in the war and subsequently attained a series of diplomatic triumphs at the peace conference, gaining the territories of Smyrna and eastern and western Thrace from Turkey and Bulgaria (treaties of Sèvres and Neuilly, 1920 and 1919) and presenting Alexander with the prospect of expanding Greece's frontiers farther into Anatolia.
It subsequently attained the highest rating in the 18 49 demographic among cable television programs that year.
He attended Lima's University of San Marcos and subsequently attained a doctorate in Latin American literature in Spain.
Art historian Catherine Speck had a different perspective on Rix Nicholas's post-World War I work, suggesting that it never subsequently attained the quality of her Paris output, because her first husband's death in the Great War drove her to create nationalist images of inconsistent quality.
Owing to the smaller Sauter mean diameter, higher than expected IAC was subsequently attained.
Mean A1C at insulin initiation was 8.2% among those who subsequently attained <7% compared with 9.2% among those who did not (P < 0.001).
Moving to the northwest, the storm slowly intensified, reaching tropical storm strength on August 21 and subsequently attaining hurricane strength after passing through the Yucatán Channel.
