It seems like you are presenting information about two medical professionals, Dr. Marks and Dr. Brooks, highlighting their contributions and specializations.
To clarify or provide more context, here’s a brief summary of the key points:
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Dr. Marks:
- Designed mechanical heart-lung machines.
- Focuses on mental health.
- Established a program to mentor Hispanic medical students.
- Established a sanatorium to treat tuberculosis patients.
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Dr. Brooks:
- Focused on advances in heart bypass surgery.
- Specialized in treating children.
- Set up an association to recruit Hispanic individuals into nursing.
- Opened a sanatorium specifically for African Americans.
If there's a specific question or aspect you'd like further elaboration on, please let me know!