padrão expressão composta (at risk of - termo depois)

at_IN risk_NN of_IN X (CC |IN |.|,|:|;)

1. Java: at_IN risk_NN of_IN ((?:[\\w-/]*_[A-Z]{2,3}\\s)*?)(?:[\\w-/]*_CC\\s|[\\w-/]*_IN\\s|\\.|,|:|;)
2. Perl: at_IN risk_NN of_IN ((?:[\w-/]*_[A-Z]{2,3}\s)*?)(?:[\w-/]*_CC\s|[\w-/]*_IN\s|\.|,|:|;)
	// \w  Casa letras, dígitos, ou '_'.
	// 1 e 2 são equivalentes

Sentences Examples:

In_IN 72_CD patients_NNS evaluated_VBN by_IN transcranial_JJ Doppler_NNP studies_NNS -LRB-_-LRB- TCD_NNP -RRB-_-RRB- ,_, 34_CD patients_NNS were_VBD at_IN risk_NN of_IN primary_JJ stroke_NN and_CC only_RB 1_CD had_VBD a_DT cerebrovascular_JJ event_NN after_IN a_DT follow-up_JJ of_IN 96_CD patient-years_NNS ._.

There_EX were_VBD 8_CD patients_NNS followed_VBD for_IN a_DT median_NN of_IN 6_CD years_NNS -LRB-_-LRB- range_NN ,_, 3-9_CD years_NNS -RRB-_-RRB- ,_, with_IN 44_CD cumulative_JJ patient-years_NNS of_IN follow-up_JJ ,_, at_IN risk_NN of_IN secondary_JJ stroke_NN ._.

As_IN a_DT whole_NN ,_, 34_CD patients_NNS were_VBD considered_VBN at_IN risk_NN of_IN primary_JJ stroke_NN on_IN the_DT basis_NN of_IN abnormal_JJ TCD_NNP ,_, and_CC 7_CD of_IN the_DT 21_CD explored_VBN by_IN MRI\/MRA_NNP had_VBD moderate\/severe_JJ arterial_JJ stenosis_NN ._.

