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).

[Q]: Abstract: We did complete histologic study on 148 gravid tubes and found that nearly 90% showed chronic lesions. CS was the most frequent lesion encountered (95.5%), followed by SIN (32.6%). Most frequently the lesions were extensive and both the ampulla and isthmus were involved. We therefore question the conservative approach in the treatment of certain TPs.
Which is the apt title for the abstract? option1: Tubal causes of ectopic pregnancy. option2: AAMC longitudinal study of 1960 medical school graduates: a 20-year effort in 28 schools, 1956-1976 [editorial]
[A]: Tubal causes of ectopic pregnancy.

[Q]: Abstract: Intravenous administration of trimethoprim-sulfamethoxazole (TMS) on three occasions resulted in fever, rash, and wheezing in a 30-year-old man with acquired immunodeficiency syndrome with Pneumocytis carinii pneumonia. Pentamidine administration produced fever, severe myositis, and clinical deterioration, and therefore, desensitization to TMS was attempted. This was done with low doses of oral suspension and then intravenous administration during a period of 60 hours. The patient reacted with fevers, arthralgia, and erythema that cleared 4 days after the desensitization was completed. This single case of successful desensitization to TMS in a patient with acquired immunodeficiency syndrome suggests that the oral route may be useful in similar situations when this drug is urgently needed.
Which is the apt title for the abstract? option1: Oral desensitization to trimethoprim-sulfamethoxazole in a patient with acquired immunodeficiency syndrome. option2: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 2-1987. A 30-year-old man with ataxia-telangiectasia and dysphagia.
[A]: Oral desensitization to trimethoprim-sulfamethoxazole in a patient with acquired immunodeficiency syndrome.

[Q]: Abstract: We examined the occurrence of crystals and casts in the urine of healthy subjects after administration of triamterene and the site of crystal formation in experimental animals. Twenty out of twenty healthy subjects had abundant triamterene crystals and casts in acid urine after receiving a single 100 mg dose. Casts were present in the urine from 2-11 hours after administration of the diuretic. Cast formation occurred in acidic urine and was prevented by alkalinization of the urine with potassium citrate. Animal studies showed that crystallization and cast formation occurred in the medullary and papillary collecting ducts of the rat kidney. These findings provide a possible explanation for the reported nephrotoxicity of triamterene, particularly when given to patients who are receiving non-steroidal anti-inflammatory agents.
Which is the apt title for the abstract? option1: Triamterene-induced crystalluria and cylinduria: clinical and experimental studies. option2: Anhidrosis and absence of sweat glands in mice hemizygous for the Tabby gene: supportive evidence for the hypothesis of homology between Tabby and human anhidrotic (hypohidrotic) ectodermal dysplasia (Christ-Siemens-Touraine syndrome).
[A]:
Triamterene-induced crystalluria and cylinduria: clinical and experimental studies.