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. 2020 Aug 12;15:5977–5989. doi: 10.2147/IJN.S259938

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© 2020 Zhang et al.

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Three-dimensional effect surface diagrams of encapsulation efficiency. (A) BO dosage to phospholipid–drug ratio (EE). (B) BO dosage to phospholipid–cholesterol ratio (EE). (C) Phospholipid–drug ratio to phospholipid–cholesterol ratio (EE). (D) BO dosage to phospholipid–drug ratio (DL). (E) BO dosage to phospholipid–cholesterol ratio (DL). (F) Phospholipid–drug ratio to phospholipid–cholesterol ratio (DL).