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15 in total

1. Symptoms and selection bias: the influence of selection towards specialist care on the relationship between symptoms and diagnoses.

Authors: J A Knottnerus; P G Knipschild; F Sturmans
Journal: Theor Med Date: 1989-03

Authors: A R Walker
Journal: Postgrad Med J Date: 1969-12 Impact factor: 2.401

Authors: P C Elwood; D Hughes
Journal: Br Med J Date: 1970-08-01

Authors: P C Elwood
Journal: Proc R Soc Med Date: 1970-12

Authors: P C Elwood
Journal: Proc R Soc Med Date: 1969-05

Authors: M J Goswell; E M Sedgwick
Journal: J Physiol Date: 1969-07 Impact factor: 5.182

Authors: A M Ganzoni; M Puschmann
Journal: Blut Date: 1975-11

Authors: J A Knottnerus
Journal: J R Coll Gen Pract Date: 1985-06

Authors: J A Knottnerus; P G Knipschild; J W Wersch; A H Sijstermanns
Journal: Can Fam Physician Date: 1986-08 Impact factor: 3.275

Authors: A Mol; M Berg
Journal: Cult Med Psychiatry Date: 1994-06