英语语法分析

Results suggest that topical ALA-PDT is a simple and effective treatment for urethral condylomata acuminata.

ALA-PDT 是治疗尿道尖锐湿疣的一种简单、有效的新疗法。

The primary presenting clinical signs of urolithiasis in horses with cystic and urethral calculi include hematuria, pollakiuria and dysuria.

在患有囊性和尿道结石的马中，主要表现为尿路结石的临床体征包括血尿，尿频和尿痛。

When a urethral injury is suspected, a retrograde urethrogram should be completed before catheterization is performed.

当怀疑有尿道损伤，在行导尿术之前，应先行逆行尿道造影。