twenty-four cancer patients with diffuse interstitial pneumonitis ( dip ) were randomized to undergo an open lung biopsy ( olb ) within 8 hours of presentation ( 12 patients ) or to receive empiric antimicrobial therapy ( et ) with trimethoprim-sulfamethoxazole ( tmp-smx ) erythromycin for a minimum of 4 days ( 12 patients ) .
C1136254
antimicrobial
C0014806
erythromycin