(Q41735875)
Statements
1 reference
National Cooperative Crohn's Disease Study: factors determining recurrence of Crohn's disease after surgery (English)
Mekhjian HS
1 reference
Switz DM
1 reference
Watts HD
1 reference
Deren JJ
1 reference
Katon RM
1 reference
Beman FM
1 reference
1 October 1979
1 reference
1 reference