The following are modifications or improvements to original notebooks. Please refer to the authors' models for the published primary work. A copy of the summaries are available at 1, 2, and 3.
Based on the 'Quantum Transfer Learning' PennyLane model or 'Transfer Learning for Computer Vision Tutorial' Stanford model. The quantum machine learning method adds a quantum circuit to the TLFE method, in general.

2 Class Datasets Used: 2 Class braintumor_data, 2xbraintumor_data
4 Class Datasets Used: 4 Class 4_cl_2xbraintumor_data, 4_cl_Mxbraintumor_data
10 Class Datasets Used: Shuffle Split 10 of 17 Classes Big Brain Tumor MRI Images, 10 Classes Brain Tumor MRI Images

Brain Tumor Datasets Source may differ from original Kaggle. 2/4 Class Kaggle, Smaller 10 Class from 44 Classes Brain Tumor Dataset is on Kaggle, Larger 10 Class from 17 Classes Brain Tumor Dataset is on Kaggle.