Hepatitis: Ptak R

 Where does R. Ptak -- the author of 2 articles on "Hepatitis" -- work?

 Possible  location for R. Ptak:

As of	Location						Addresses
·····2007	··					miscellaneous institution(s) in Frederick
	Google search: Ptak Hepatitis Frederick

Summary of  probable  and  possible  locations for R. Ptak:

Location		2009		2008		2007		2006		2005		2004		2003		2002		2001		2000		1999
	miscellaneous institution(s) in Frederick					1						1
Location		2009		2008		2007		2006		2005		2004		2003		2002		2001		2000		1999

miscellaneous institution(s) in Frederick

Google search: Ptak Hepatitis Frederick

Possibly apply to Ptak R:
2007	Veracity Biotechnology, LLC, 401 Rosemont Avenue, Third Floor Rosenstock Hall, Frederick, MD 21701, USA. · Pubmed 16987555
2004	Infectious Disease Research Department, Southern Research Institute, 431 Aviation Way, Frederick, MD 21701, USA. · Pubmed 14670594