Introduction

Chapter 1

Chapter 2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9 (Quiz)

Chapter 3

Chapter 4

Conclusion

Set 1 (references containing "antibiotics" and "dairy products" closely associated with one another) includes references in which both terms appear in the same sentence in the reference.

Set 2 (references containing "antibiotics" and "dairy products" were present anywhere in the reference) includes references in which both terms appear anywhere – so one or both terms could appear in the title, abstract, etc.

Set 3 (references containing "antibiotics" only) includes references in which only the first term appears.

Set 4 (references containing "dairy products" only) includes references in which only the second term appears.

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