Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

Abstract: Macroporous polystyrene and polyvinylpyridine beads with quaternary ammonium and tertiary groups were tailor-made for the adsorption of unconjugated bilirubin. In vitro studies in order to obtain high adsorption capacity, the synthesized macroporous resin should have an average pore size of about 160 A and with surface area as large as possible. As the crosslinking of the resin increased from 4%-40% the amount of bilirubin adsorbed increased from 0.17 mg/g to 2.0 mg/g. Resins containing strong basic groups have higher adsorption capacities than their corresponding weak base groups. Adsorption mechanism studies showed that both chemical and physical adsorption took place. Adsorption of bilirubin in plasma was some what lower than in buffer solution.
Which is the apt title for the abstract? option1: Removal of unconjugated bilirubin by macroreticular resin in hemoperfusion. option2: Small intestinal complications of diverticulitis of the sigmoid colon.
Removal of unconjugated bilirubin by macroreticular resin in hemoperfusion.

Abstract: Several investigators have reported an association between low serum cholesterol levels and an increased frequency of colorectal cancer. Because low cholesterol levels may be a result of an established cancer, we have investigated the relation between serum cholesterol levels and the frequency of colorectal adenomas, which are thought to be precursors of colon cancer. We prospectively studied 1083 consecutive patients who underwent colonoscopy (241 of whom were excluded because of malignant disease, chronic inflammatory bowel disease, familial polyposis, or partial colectomy). In the remaining 842 patients, analysis of covariance was performed to evaluate the contribution of serum cholesterol to the risk of colorectal adenoma. Serum cholesterol levels were significantly and positively associated with the frequency of colorectal adenoma in subjects of both sexes. After adjustment for age and body-mass index, this positive association remained significant between the top quintile and the lowest quintile for serum cholesterol, with regard to the total study group (odds ratio, 2.0; 95 percent confidence limits, 1.1 and 3.6) and men only (odds ratio, 2.2; 95 percent confidence limits, 1.0 and 4.8). We conclude that there is not an inverse correlation between serum cholesterol levels and the risk of colorectal adenomas; on the contrary, there appears to be a small positive association.
Which is the apt title for the abstract? option1: Relation between the frequency of colorectal adenoma and the serum cholesterol level. option2: Difficult mammographic needle localizations: use of alternate orthogonal projections.
Relation between the frequency of colorectal adenoma and the serum cholesterol level.

Abstract: Both heparin and fibrinolytic agents carry a risk of bleeding. Because of their beneficial effects in restoring vessel patency, we prefer the use of fibrinolytic agents in patients with acute deep vein thrombosis unless there is some specific contraindication. With the treatment regimen we have outlined, the risk of bleeding is extremely low. We have found that the long-term results achieved with streptokinase therapy are excellent, and normal venous hemodynamics can be restored quickly and effectively.
Which is the apt title for the abstract? option1: Treatment of acute deep venous thrombosis with fibrinolytic agents. option2: Management of urinomas by percutaneous drainage procedures.
Treatment of acute deep venous thrombosis with fibrinolytic agents.