SJLD Apr 1, 2012:

médecin attaché = practicien attaché - answer already in glossary and link above
http://www.proz.com/kudoz/french_to_english/medical_general/...

SJLD Apr 1, 2012:

http://forums.remede.org/questions_generales/sujet_11655.htm...

Chef de Clinique : jeune médecin tout juste diplômé qui accroit ses compétences en exerçant à l'hôpital et à la faculté (contrat de 2 ans renouvelable 2 fois 1 an maxi) il faut souvent un DEA pour trouver un tel poste

Médecin Attaché : médecin qui travaille à l'hôpital en tant que contractuel

...vacataire (identique à attaché) qui fait de 1 à 3 vacations par semaine àl'hopital .

SJLD Apr 1, 2012:

These are doctors who are not really part of the CHU hierarchy - they do not have teaching or admin responsibilities like the Chef de Clinique, but come in to work in the hospital on a part-time basis.

SJLD Apr 1, 2012:

Definitely not administrative staff.

Aoife Ní Chinnéide (asker) Apr 1, 2012:

I'm not 100% certain, except that the "attachees'" names are underneath the names of the Chefs de Clinique, so I assumed that they came below the CCAs in terms of rank. They may however be part of the hospital's administrative staff, but I'm not sure that as such they would figure in the letterhead.

SJLD Apr 1, 2012:

http://www.proz.com/kudoz/french_to_english/medical_general/...

SJLD Apr 1, 2012:

Are you sure of your definition (grade below chef de clinique)? I have my doubts.
http://www.cardiologie-auxerre.fr/_4RWUFZNE3VK7LCEOPBWPG4TRU...