Counterfeit medicines are an increasing scourge that are difficult to identify and they have become industrialized and widespread through highly organized illegal channels.

中文翻译：

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设计空间，不确定性和风险状况策略在UPLC方法开发和验证中的应用，该方法用于表征四种授权的5类磷酸二酯酶抑制剂与假药的战斗

假药是一种日益严重的祸害，难以查明，它们已通过高度有组织的非法渠道工业化并得到广泛传播。