These are some of the sites visited in the quest of gathering information needed for the timeline development. Without these truly helpful information, the timeline project may not see the light of the day.
- 20th Century Medical Milestones
- Bloodletting antiques
- Cardiac Pacemaker
- Catheter
- ECG Library A brief history of electrocardiography
- Encarta Online
- Encyclopedia Britannica
- Encyclopedias at Library Spot
- Endoscopy
- Global Studies Milestones
- Histor�a de la Cirug�a Laparosc�pica
- History Channel
- History of ACL Surgery
- History of Blood Pressure Monitoring
- History of Dentistry
- History of Electrical Cardiac Stimulation
- History of HPLC
- History of Incubators
- History of Laparoscopy
- History of the Light Microscope
- History of Medicine A Timeline of Medical Discoveries, Inventions, Advances, and Events from Prehistoric Times to the Present
- History of Plastic Surgery
- History of Surgery
- History of Urology in Italy
- History Tip
- HyperHistory Online
- Hypodermic Needle
- Intra Aortic Balloon Pump
- Laser History
- Medical Antiques An antique medical, surgical, and dental resource site
- Medical History on the Internet
- Medical Innovations
- Medical Milestones
- Medical Milestones
- Medical Milestones of the Last Millennium
- Medical Milestones of the Millennium
- Milestones in Cardiology
- Milestones in Medical Diagnosis and Diagnostic Imaging
- Milestones in Medicine
- Milestones Of World History Germany (16-20th century)
- Minimally invasive surgery The legacy of an ancient tradition
- Overview of Healthcare History
- Respirator
- Pharmaline Medical milestones
- Practical Holography
- Short History of Laparoscopy and Laparoscopic Surgery
- Short History of the Computer
- Short History of Spectacles
- Surgery in Islam A Historical and Current Reappraisal
- Ten Medical Milestones
- Timeline of 19th Century History
- Timeline of the Twentieth Century