Gastrointestinal blood loss and piroxicam.
D000368:Aged; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D006396:Hematemesis / Q000139:chemically induced; D006801:Humans; D008297:Male; D008551:Melena / Q000139:chemically induced; D008875:Middle Aged; D010894:Piroxicam; D011725:Pyridines / Q000009:adverse effects*; D013843:Thiazines / Q000009:adverse effects*
D011725:Pyridines; D013843:Thiazines; D010894:Piroxicam