求助PDA Journal of Pharmaceutical Science and Technology September 2019, 73 (5) 487-495:Preventing Cross-Contamination during Lyophilization: GMP and Occupational Cleaning Requirements for Nonproduct and Indirect Product-Contact Parts(防止冻干过程中的交叉污染非产品和间接产品接触部分的GMP和职业清洁要求)。感谢各位大神。