- Ciszewski Stefan
- Ciszewski Tomasz
- Citko Jolanta
- Citron Charles
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- Civelek M.
- Civenni G.
- Ciwińska Marta
- Ciwoniuk M.
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- Ciznar Peter
- Ciżyńska Aleksandra
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- Claessens An
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- Clague Michael J.
- Clair Timothy
- Clancy Anne
- Clanet M.
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- Clare Emily
- Claridge Simon
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- Clark Anne
- Clark Camellia P.
- Clark Edward G.
- Clark Emma
- Clark J.
- Clark R.
- Clark R.D.
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- Clarke Jonathan
- Clarke Peter
- Clarke R. N.
- Clarke R.N.
- Clarke Robert
- Clarke Robert N.
- Clarke Wendy
- Clarke-Pearson Daniel L.
- Classic Trial Group
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- Claus Catherine P.
- Claus Rainer
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- Clavero Esther
- Clavero Omar
- Clay-Gilmour Alyssa
- Clay‐Gilmour Alyssa I.
- Clé Diego Villa
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- Cleffken Berry
- Clemens T.
- Clemens Timo
- Clement Ian
- Clement Yuri N.
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- Clementi Emilio
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- Clements P.
- Clements Philip
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- Čmikowá Natália
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- Cnota W.
- Cnota Wojciech
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- co-autors [m. in.] The EUSTAR
- COBALT Investigators: [m. in.] The
- Čobanová Klaudia
- Cobbe Stuart M.
- Cobello Christopher
- Cobianchi Lorenzo
- Coblentz Craig
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- Coleman Nichole
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- Čolić Miodrag
- Colin R.
- Colita D.
- Coll Nuria S.
- Collaborators Afib-Icu
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- Collaborators International
- Collaborators [m. in.]
- Collaborators [m. in.] The Polaris Observatory HCV
- Collado Pilar Garrido
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- Collart Clara
- Collart F.
- Collas De Souza Sabrina
- Collet Marie O.
- Collingridge G.L.
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- Collins Jack R.
- Collins J.F.
- Collins John
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- Collu G.
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- Colombo E.
- Colombo María I.
- Colombo N.
- Colón-Ramos Daniel A.
- Colpaert Kirsten
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- Comert-Ozer Elif
- Comi G.
- Comincini Sergio
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- Cominetti Marco
- Comitato Antonella
- Committee: [m. in.] Steering
- Committees and Investigators ODYSSEY OUTCOMES
- Committees Investigators Red-HF
- Compagno N.
- Compher Charlene
- Compher Charlene W.
- Compton Zachary J.
- Conaghan Philip G.
- Conchonaud Fabien
- Concilio Marina
- Confavreux C.
- Confederat L.
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- Coniglio Carlo
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- Conn P. Michael
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- Consiglio Antonella
- Consolo S.