From what I have read in this site, a noun clause (oração substantiva/integrante/nominal ) might be
a) introduced by "dependent signal'' words. Like THAT
, for instance.
b) Noun clauses describe something about the verb or the sentence
. We use who, what, which, whose, whoever, whatever, when, where, why, whether, how and that in noun clauses.
- See more at: http://www.grammarbank.com/noun-clauses ... TWQNU.dpuf
So, for the time being, I would say the independente clause here is "Some breast surgeons are discomfited" and the dependent clause is "that some might infer from the article that reconstructive surgery is a quick and easy procedure"
So, the dependent clause may be used as a noun there.
c) From what I read, there´s nothing wrong with having more than one verb in that fragment of sentence called noun clause.
Let´s wait for more comments, since I am just a learner just like you, so I could be mistaken or misled.http://www.dailygrammar.com/Lesson-272-Noun-Clauses.htm