In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

[Q]: Question: In which patient would an urgent coronary angiography be performed? 
 Options:  <0> 66-year-old diabetic woman with a single episode of pain at rest and elevation of troponins. <1> A 77-year-old man admitted for two 30-minute episodes of pain with a decrease in the ST segment on the ECG during the episode of pain. <2> A 55-year-old man who, after a week of treatment with double antiaggregation, underwent an isotopic ergometry showing extensive ischemia in the anterior face. <3> A 65-year-old woman with pain at rest and positive clinical ergometry in the third stage of Bruce. <4> A 55-year-old patient admitted for chest pain and dyspnea saturating 80% despite the administration of oxygen and with an ECG with ST-segment depression in the anterolateral aspect that does not revert with the administration of intravenous nitroglycerin.
[A]: medicine


[Q]: Question: What element plays a physiological role in the prevention of gastroesophageal reflux? 
 Options:  <0> Upper esophageal sphincter <1> Angle of His. <2> Hernia of Hiato. <3> Purkinje angle. <4> Pyloric sphincter
[A]: pharmacology


[Q]: Question: As is known, estrogenic treatment can give rise to various adverse effects. Which of the following is NOT an adverse effect due to this pharmacological action? 
 Options:  <0> Edema. <1> Breast pain <2> Ovarian cancer. <3> Sickness. <4> Headaches
[A]:
pharmacology