Synthesis of PPSA as a phosphorus-containing polymer water treatment agent;

甲壳胺是一种无毒、无公害、价廉的天然水处理剂。

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As our nation struggles with these problems, it is imperative that the administration implement the PPSA without any further delay.

FORBES: Prominent Doctors Call For Action On Transparency Law

In March 2010, President Barack Obama signed the Affordable Care Act into law, which included the Physician Payments Sunshine Act (PPSA).

FORBES: Prominent Doctors Call For Action On Transparency Law

We applauded its passage but, nearly three years later, we are disappointed that the PPSA has yet to be implemented especially in light of reports that the final rules are being held up at the White House Office of Management and Budget.

FORBES: Prominent Doctors Call For Action On Transparency Law