Interventional Procedures At Advanced Pain Management, we specialize in treating chronic pain conditions. This specialty is relatively new, although algology (the study of pain) has been present since before the age of Hippocrates.
Main article: Stem cells. Stem cells are cells found in all multi-cellular organisms. They were isolated in mice in 1981, and in humans in 1998. In humans there are many types of stem cells, each with varying levels of potency.
Before the 20th century. The development of cytology is associated with the development of methods of investigating cells. A cellular construction was first detected in some plant tissues by the British scientist R. Hooke (1665) using a microscope.