Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

Example Input: Abstract: Absorption of dietary phosphorus plays a critical role in the development of metabolic bone diseases in patients with chronic renal failure. However, phosphorus absorption is difficult to quantitate in dialysis patients because the dialysis treatments complicate metabolic balance studies. Utilizing a recently developed technique which permits measurement of net absorption of dietary constituents after a single meal, we measured phosphorus absorption in dialysis patients. The following observations were made: A.) Following a meal containing approximately 300 mg phosphorus, mean phosphorus absorption in five hemodialysis patients (with severe vitamin D deficiency) was only slightly less than in matched controls (186 +/- 35 vs. 242 +/- 30). B.) After dialysis patients were treated with 1,25(OH)2-D3, phosphorus absorption increased from 186 +/- 35 to 272 +/- 16 mg (P less than 0.025). C.) The effect of three aluminum containing antacids on phosphorus absorption was studied; each slightly reduced the absorption of phosphorus compared to placebo (P less than 0.01), but there was no significant difference between them. D.) Aluminum hydroxide and calcium carbonate each reduced dietary phosphorus absorption to approximately the same extent. Calcium carbonate ingestion was associated with sharply increased calcium absorption. The absorption of dietary phosphorus is influenced only modestly by 1,25(OH)2-D3 and is inhibited to an equal but only modest degree by various aluminum antacids and by calcium carbonate.
Example Output: The absorption of dietary phosphorus and calcium in hemodialysis patients.

Example Input: Abstract: Although pelvic inflammatory disease is the most common serious infection among young women of reproductive age in the United States, no nationwide data are available on the patterns of antibiotic treatment of this disease. To examine these patterns we analyzed over 25 million antibiotic prescriptions for treatment of pelvic inflammatory disease from 1966 through 1983, using the National Disease and Therapeutic Index. Most patients received a single antibiotic on an outpatient basis. Overall, use of natural penicillins declined markedly, and use of aminopenicillins more than doubled. Cephalosporins emerged as the most frequently prescribed antibiotic for hospitalized patients. Nationwide surveillance of treatment patterns may help to identify areas needing improvement through continuing education.
Example Output: Antibiotic treatment of pelvic inflammatory disease. Trends among private physicians in the United States, 1966 through 1983.

Example Input: Abstract: Six cases of epileptic children are reported, in whom anticonvulsant therapy, aggravated rather than controlled the seizures or induced minor seizures. This was caused by excessive polytherapy in one case and by the use of the inappropriate drug (for that type of epilepsy) in four other cases. In the sixth case, the appropriate anticonvulsant was used, but it induced multiple astatic-myoclonic seizures. This phenomenon of drug-induced seizures is apt to occur particularly in certain types of childhood epilepsy that are refractory to therapy and are accompanied by slow spike-wave discharges in the EEG, such as the Lennox-Gastaut syndrome.
Example Output:
Seizures induced or aggravated by anticonvulsants.