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).

Ex Input:
Abstract: Five patients suffered injuries around the wrist complicated by acute tunnel syndrome. Pain associated with median nerve paraesthesia or hypo-aesthesia are indications for urgent treatment; in four patients where operation was delayed, the outcome was poor.
Which is the apt title for the abstract? option1: Acute carpal tunnel syndrome. Complications of delayed decompression. option2: Diagnosis of myocarditis by endomyocardial biopsy.

Ex Output:
Acute carpal tunnel syndrome. Complications of delayed decompression.

Ex Input:
Abstract: The urine urea nitrogen/urine creatinine excretion ratio (UUN/UCr) of a "spot" urine specimen obtained approximately 5 hours after the last meal of the day can be used to accurately calculate the urinary urea excretion for the previous 24-hour period. Because UUN excretion is largely determined by dietary intake of protein nitrogen, this method can be used to estimate dietary protein intake for the previous 24-hour period. Strategies for using this simple method for inexpensively and continuously monitoring dietary protein intake are discussed.
Which is the apt title for the abstract? option1: Simple method for monitoring 24-hour urinary urea nitrogen excretion. option2: Impact of myelography on the radiotherapeutic management of malignant spinal cord compression.

Ex Output:
Simple method for monitoring 24-hour urinary urea nitrogen excretion.

Ex Input:
Abstract: In reconstructing the anterior cruciate ligament (ACL) it is important to place the inner ends of the drill channels correctly, to get the ACL into an isometric position. Anatomic studies demonstrate the value of a modified surgical technique using a special drill guide for standardized positioning of the anterior cruciate substitute. The drill guide consists of a metal frame with one adjustable and one fixed guide tube. Drilling is done from the anteromedial aspect of the tibia, upwards, through the joint space and the femur in a straight line, both channels being drilled in a single procedure. The precision of guided drilling was superior to that of free-hand drilling in positioning the ligament in the correct anatomic place.
Which is the apt title for the abstract? option1: A modified technique for anterior cruciate ligament (ACL) surgery using a new drill guide for isometric positioning of the ACL. option2: Ultraviolet-B radiation suppresses mast cell degranulation induced by compound 48/80.

Ex Output:
A modified technique for anterior cruciate ligament (ACL) surgery using a new drill guide for isometric positioning of the ACL.