Figure 1.

Ward agglomerative method for hierarchical clustering. The following clusters of symptoms and isolated symptoms were defined by the Ward agglomerative method: abdomen (abdominal bloating and/or increased abdominal size); back pain; pain (pelvic and/or abdominal pain); leg swelling; eating (unable to eat normally and/or feeling full quickly); able to feel abdominal mass; miscellaneous (fatigue and/or difficulty breathing); digestion (indigestion and/or nauseas/vomiting); bladder (urinary urgency and/or frequent urination).