Author: |
John P. Greer MD, Daniel A. Arber MD,
Bertil E. Glader MD, Ph.D., Alan F. List M.D., Robert T. Means Jr., MD, George M. Rodgers MD, |
Release at: | 2018 |
Pages: | 7187 |
Edition: |
Fourteenth Edition
|
File Size: | 134 MB |
File Type: | |
Language: | English |
Description of Wintrobes Clinical Hematology
Wintrobes Clinical Hematology book is a great book for the study of Hematology you can get this book in PDF free download easy to print format. The modern era of clinical hematology, according to Wintrobe, began less than a century ago when the pathogenesis of pernicious anemia was initially described. He outlined the historical perspective in the introduction to his textbook:
When and in what manner blood was first examined is unknown, but before the days of microscopy only the gross appearance of the blood could be studied. Blood allowed to clot in a glass vessel can be seen to form several distinct layers: at the bottom, a dark red, almost black, jellylike material is seen; above this is a red layer, and still nearer the top of the clot is a pale green or whitish layer. Above these is the transparent, yellow serum. It has been suggested that perception of these layers in the blood after its removal from the body may have given rise to the doctrine of the four senses of humor (black bile, sanguis, phlegm, and yellow bile), which were believed to constitute the substance of the human body.
Health and disease were thought to be the result of the proper mixture or imbalance, respectively, of these four senses of humor. This doctrine corresponding to the pervading concept of matter founded on the interrelationship of the four elements earth, water, air, and fire was set out clearly in the Hippocratic writings and was systematized into a complex metaphysical pattern by Galen in the 2nd century AD. The 17th century dominated medical thinking.
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