J. P. Callen

Metastatic Crohn's disease presenting as chronic perivulvar and perirectal ulcerations in an adolescent patient.

B. Schrodt, J. P. Callen, 1999, Pediatrics.

Polyarteritis nodosa attributable to minocycline treatment for acne vulgaris.

B. Schrodt, J. P. Callen, 1999, Pediatrics.