added db comparison to notebook 3

Author: josephrich98

.gitignore

@@ -151,6 +151,8 @@ logs/
 # databases besides main
 data/*
 !data/radiology_db.csv
+!data/radiology_db_sample.csv
+!data/radiology_db_sample_small.csv
 
 # Scratch directories
 trash

data/radiology_db.csv

@@ -0,0 +1,6 @@
+name,num_images,num_patients,modalities,body_regions,additional_data,paper_title,paper_link,paper_year,paper_authors,paper_journal,pmid,paper_citation_count,verified
+Merlin,6000000.0,15331.0,CT,abdomen,"reports,reports",Merlin: a computed tomography vision-language foundation model and dataset.,https://doi.org/10.1038/s41586-026-10181-8,2026,"Blankemeier L,Kumar A,Cohen JP,Liu J,Liu L,Van Veen D,Gardezi SJS,Yu H,Paschali M,Chen Z,Delbrouck JB,Reis E,Holland R,Truyts C,Bluethgen C,Wu Y,Lian L,Jensen MEK,Ostmeier S,Varma M,Valanarasu JMJ,Fang Z,Huo Z,Nabulsi Z,Ardila D,Weng WH,Junior EA,Ahuja N,Fries J,Shah NH,Zaharchuk G,Willis M,Yala A,Johnston A,Boutin RD,Wentland A,Langlotz CP,Hom J,Gatidis S,Chaudhari AS",Nature,41781626,0,1
+RadImageNet,1350000.0,131872.0,"CT,MRI,US","brain,chest,abdomen,pelvis,limbs",segmentation,RadImageNet: An Open Radiologic Deep Learning Research Dataset for Effective Transfer Learning.,https://doi.org/10.1148/ryai.210315,2022,"Mei X,Liu Z,Robson PM,Marinelli B,Huang M,Doshi A,Jacobi A,Cao C,Link KE,Yang T,Wang Y,Greenspan H,Deyer T,Fayad ZA,Yang Y",Radiology. Artificial intelligence,36204533,156,1
+MIMIC-CXR,,65379.0,X-ray,chest,reports,"MIMIC-CXR, a de-identified publicly available database of chest radiographs with free-text reports.",https://doi.org/10.1038/s41597-019-0322-0,2019,"Johnson AEW,Pollard TJ,Berkowitz SJ,Greenbaum NR,Lungren MP,Deng CY,Mark RG,Horng S",Scientific data,31831740,579,1
+The Cancer Imaging Archive (TCIA),3300000.0,,"CT,MRI,X-ray,PET","brain,chest,abdomen,pelvis,limbs","reports,captions,segmentation",The Cancer Imaging Archive (TCIA): maintaining and operating a public information repository.,https://doi.org/10.1007/s10278-013-9622-7,2013,"Clark K,Vendt B,Smith K,Freymann J,Kirby J,Koppel P,Moore S,Phillips S,Maffitt D,Pringle M,Tarbox L,Prior F",Journal of digital imaging,23884657,2224,1
+UK Biobank,,100000.0,MRI,brain,,"The UK Biobank imaging enhancement of 100,000 participants: rationale, data collection, management and future directions.",https://doi.org/10.1038/s41467-020-15948-9,2020,"Littlejohns TJ,Holliday J,Gibson LM,Garratt S,Oesingmann N,Alfaro-Almagro F,Bell JD,Boultwood C,Collins R,Conroy MC,Crabtree N,Doherty N,Frangi AF,Harvey NC,Leeson P,Miller KL,Neubauer S,Petersen SE,Sellors J,Sheard S,Smith SM,Sudlow CLM,Matthews PM,Allen NE",Nature communications,32457287,535,1