Arthritis & rheumatology (Hoboken, N.J.)

Multiple Nonspecific Sites of Joint Pain Outside the Knees Develop in Persons With Knee Pain.

Arthritis & rheumatology (Hoboken, N.J.)

Felson DT, Niu J, Quinn EK, Neogi T, Lewis CL, Lewis CE, Frey Law L, McCulloch C, Nevitt M, LaValley M

Editorial: observational studies, time-dependent confounding, and marginal structural models.

Arthritis & rheumatology (Hoboken, N.J.)

McCulloch CE