82-Columbia-Presbyterian Med.Ctr.	R.Sacco,S.Homma, M. Di Tullio,
	R.Marshall,M.Elkind,C.Stapf,H.Mast, M.Clavijo
53-Long Island-Jewish Med.Ctr.	R.Libman,S.Roth,R.Gonzaga-Camfield
47-Georgetown University	M.Yaseen,D.Lu,J.Burfoot,E.Green
41-Univ.Illinois Med.Ctr.	C.Helgason,S.Devries,J.Hoff,T.Gnutek
38-Univ.Iowa Hospitals&Clinics	H.P.AdamsJr,B.Bendixen,B.Vandenberg,A.Tanna,L.Vining
30-Johns Hopkins-Bayview Med.Ctr.	C.Johnson,E.Shapiro,C.Early,J.Alt
29-U.of Texas Medical School (Houston)	J.Grotta,F.Thandrayen,D.Vital
23-Buffalo General Hospital	P.Pullicino,Z.Hajduczek,M.Hens,N.Meiler,A.Martinez
21-Cleveland Clinic Foundation	C.Sila,B.Stewart,B.Dyko,N.Rudd
21-Massachusetts General Hospital	J.Kistler,M.Picard,K.Furie,F.Buonanno,L.Oertel
19-Montefiore Med.Ctr.	D.M.Rosenbaum,M.Nanna,E.Klonowski,S.Rybak,J.Nonan
17-Henry Ford Hospital	P.Mitsias,S.Smith,K.Sawaya,P.Marchese,J.Reuther
17-University of Miami Sch.of Med.	R.Kelley,M.Bilsker,A.Forteza,J.Arias
15-Lankenau Med. Research Center	M.Alter,A.Sokil,G.Friday,M.Lloyd,T.Listner,A.Smith
15-Stanford Stroke Center	G.W.Albers,I.Schnittger,N.Hock,S.Kemp
14-Mt.Sinai School of Medicine	S.Tuhrim,M.Goldman,S.Augustine
13-Vanderbilt Med.Ctr.	H.Kirschner,B.F.Byrd,A.Nelson,S.O'Connell,K.Heyden,D. Klein
12-Univ of Kentucky Med.Ctr.	R.Dempsey,P.Sapin,L.Pettigrew,B.Stidham,I.Lamb
12-Pennsylvania Hospital	D.Jamieson,S.Mandal,C.Gonnella,M.Hellstern
11-New England Med.Ctr.	M.Pessin,S.Schwartz,L.Caplan,L.Barron
11-Rochester General Hospital	J.Hollander,L.von Doenhoff,C.Weber
9-Indiana University Med.Ctr.	J.Biller,D.Segar,L.Chadwick
8-Cleveland Clinic-Florida	B.Dandapani,H.Bush,V.Salanga,P.Parks,M.Piccirillo
8-New York University-NY,VA	H.Weinreb,A.Gindea,K.Siller,L.Chin,G.Allen
8-Wayne State University	S.Chaturvedi,S.Levine,L.Femino,E.St Pierre,L.Quinones, F.Mada
6-Hennepin County Med.Ctr.	D.Anderson,R.Asinger,D.Brauer,D.Radtke
6-Univ.Southern California	M.Fisher,P.A.N.Chandraratna,G.Fischberg,A.Scicli,A. Mohammadi
5-Albert Einstein(PA) Med.Ctr.	J.Dissin,S.Sillman,L.Jacobs,C.Borschell
5-Metrohealth Med.Ctr.	J.Schmidley,R.Finkelhor,M.Winkelman,A.Liskay
4-Boston University Med.Ctr.	C.Kase,R.Davidoff,E.Licata-Gehr,N.Allen
4-Marshfield Clinic	P.Karanjia,D.Horton,S.Lobner,L.Stephani
4-Univ.Michigan Med.Ctr.	M.Chimowitz,W.Armstrong,Z.Noorani
4-U. Calif.San Diego	C.Jackson,D.Blanchard,N.Kelly,J.Werner
3-St.Paul-Ramsey Med.Ctr.	M.Ramirez-Lassepas,J.T.Suh,C.Espinosa
3-Yale U.School of Medicine	L.Brass,C.C.Jaffe,A.Lovejoy,B.Kennedy
3-Syracuse VA-Med.Ctr.	A.Culebras,R.Carleson,M.Benedict,D.Pastor,T.Dean
2-Beth-Israel Hospital,Boston	C.Mayman,W.Manning,S.Warach,L.R.Caplan,M.Tijerina
2-Little Rock,AR.VA-Med.Ctr.	M.Chesser,B.Boop,S.Nazarian,L.Kennedy
2-University of South Alabama	J.Rothrock,R.Zweifler,S.Cunningham,R.Yunker
1-Maimonides Med.Ctr.	A.Miller,A.Greengart,K.Chin,T.LaRocca
1-U.Tennessee,Memphis	K.Gaines,S.Gubin,B.O'Brien,C.Bonds,J.Shaw,A.Payne
1-University of Vermont	R.Battle,R.Hamill,P.Krusinski,M.Fitzpatrick