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1. Q11 development and manufacture of drug substances (chemical entities and biotechnological/biological entities): questions and answers

2. Regulatory considerations for human cells, tissues, and cellular and tissue-based products: minimal manipulation and homologous use : guidance for industry and Food and Drug Administration staff

3. Same surgical procedure exception under 21 CFR 1271.15(b): questions and answers regarding the scope of the exception

5. Alternative procedures for the manufacture of cold-stored platelets intended for the treatment of active bleeding when conventional platelets are not available or their use is not practical: guidance for industry