Which of the following is true regarding pulp component of PUFA?
PUFA index by Monse et al (2010)
The PUFA index records the presence of severely decayed teeth with:

Visible pulpal involvement - (P/p)
Ulceration caused by dislocated tooth fragments - (U/u)
Fistula - (F/f)  
Abscess - (A/a).

Pediatric Dentistry Principles and Practice
M.S.Muthu
Detected without use of probe
Pus drainage with swelling
Sinus tract detected with pain
Ulceration with pulp involvement