Transplantations of various stem cells or their progeny have repeatedly improved cardiac performance in animal models of myocardial injury; however, the benefits observed in clinical trials have been generally less consistent.
From the iMac to the iPhone, every Apple product has been repeatedly improved for better customer satisfaction.
SAN FRANCISCO, July 18 — Meg Whitman, chief executive of eBay, has repeatedly vowed to improve usability of the auction site by redesigning its home page, being more aggressive in combating fraud and improving the usefulness of search engine results.
The strain drove some to suicide in the past; Apple has repeatedly pledged to improve its labour practices, with counselling and labour monitoring.
The firm, which is based in London, has repeatedly vowed to improve its oversight and has embarked on management reshuffles to that end.
Since the end of the Firebrand court case, the Nauruan government has repeatedly trumpeted an improving economic outlook for the country.
Although ministers have made concessions on some of their other plans, they have shown no signs of backtracking on competition, which David Cameron has repeatedly said will improve standards in the NHS and lead to greater value for money.
Britain's biggest police force has repeatedly promised to improve its record on race since an independent inquiry more than a decade ago found it to be institutionally racist.
The Chinese government has repeatedly vowed to improve the safety of mining conditions, and nearly every year safety regulators announce the closing of thousands of illegal mines, which tend to be the most dangerous.
But they also noted that North Korea has repeatedly vowed to improve its nuclear arsenal, which is believed to include several weapons, though none as destructive as a hydrogen bomb.
