In medical studies, treatments are tested within a group of study participants. To determine if a new treatment works, various outcomes are measured in the people who take part in the study. You will be given a sentence of a study report in which your task is to list the phrases that give information about the outcomes of the study. You should list the phrases in the same order that they appear in the text, separated by commas. If no information about the outcome is mentioned, just answer with: "not found".
 Outcomes contain: outcomes measured in patients: like blood sugar,
 outcomes regarding the intervention: like effectiveness, costs
 the score on a medical test or questionnaire,
 positive or negative events in the patient groups: like quitting smoking, or adverse reactions.
 Do not mention numbers or results, interpretations of outcomes, outcome mentions without relevant information.

[EX Q]: Calcium solubility and absorption across Caco-2 cells were studied after the in vitro digestion of the diets .
[EX A]: absorption

[EX Q]: Inherent stent related problems warrant a minimum possible duration of stenting without compromising the results of endopyelotomy .
[EX A]: not found

[EX Q]: There was no difference in the proportion of patients requiring transfusions during the study ( 23 % in 40K arm and 18 % in 120K arm , P = .22 ) or specifically during the maintenance phase ( 13 % in 40K arm v 15 % in 120K arm , P = .58 ) .
[EX A]:
proportion, transfusions