What type of details about stephen r. marquardt can be gathered from the following bio? Bio: dr. stephen r. marquardt is an american surgeon born and raised in southern california . he received his medical degree from ucla and completed his residency on oral and maxillofacial surgery at the ucla medical center . his university appointments have included assistant research oral surgeon and chief of facial imaging at ucla , and professorships at loma linda university as well as the university of southern california . he retired from active surgical practice after 27 years and currently conducts his research on human attractiveness in orange county , california . marquardt is an active member of the societies of maxillofacial surgeons . he has developed what is called the '' beauty masks '' or '' facial masks '' which use mathematics to try to measure the ratios of beauty .
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