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A different randomized, double-blind, placebo-controlled clinical trial demonstrated that daily oral administration of equal-lower doses (5 g/day) of l-ARG for a shorter period (6 weeks) compared to the current study induced a significant subjective improvement of penile erectile function, as assessed through standardized OLeary questionnaire for ED, although without a significant improvement of penile vascular parameters assessed by basal PDU, in 29 middle-aged/elderly men affected by organic ED of mixed etiology and unknown severity, therefore reporting, in line with the results of the current study, a discrepancy between subjective and objective improvement in erectile function [28]
Time-to-Event Analysis The Kaplan-Meier survival analysis with log-rank test revealed no significant differences in terms of recurrence (p = 0.7), metastasis (p = 0.2), and death (p = 0.5) among patients undergoing GTR alone, GTR with radiation therapy, STR alone, or STR with radiation therapy
A peptide stored at the right temperature but constantly exposed to light and agitation will degrade much faster than one stored meticulously
