"led to improvement" is correct and usable in written English.
You can use it when you want to express that something has caused something else to become better. For example, "The new initiative led to improvement in the company's financial performance."
Although chemotherapy has led to improvement in this manner, drug resistance and toxicities remain major obstacles to improving the overall response and survival of cancer patients [ 2].
Continuous updating of the genotyping technology has led to improvement of genetic study design.
Conservative management led to improvement of graft function in one patient, while the other patient returned to dialysis.
The needs of the UN mission in Kosovo led to improvement of Kosovo's road system following the 1998 99 conflict.
In this study, we observed that an increase in the BS concentration led to improvement of its antimicrobial effects (Table 4).
SEM and XRD results showed that admixing NS led to improvement in the microstructure, and pozzolanic behavior of UPOFA mixtures at 28 days.
It is also possible that just spending time in a relaxing environment or being touched and cared for by a sympathetic therapist could have led to improvement.
Photoluminescence imaging clarified that impurities are efficiently trapped at functional defects after annealing, which led to improvement of the crystal quality along the functional defects.
It has been found that both treatments led to improvement of the stress transfer efficiency at the interface, and both applied treatments were optimised, accordingly.
In previous work, incorporation of such correlations in the interaction profile hidden Markov models with a special decoding algorithm (ETB-Viterbi) has led to improvement in prediction accuracy.
Reduced mass transport limitations enabled higher volumetric flow rates and led to improvement in the efficiency of BDS.
