APFIEQ-CyL	Promotion of Training and Research in Surgical Specialties in Castilla and León
BCG	Bacillus Calmette-Guerin
BFB	Biofeedback (BFB)
BFB+	Group receiving adjuvant biofeedback
BFB−	Group of patients who did not receiving biofeedback of pelvic floor.
BMI	Body mass index
BPS	Bladder pain syndrome
BTX-A	Botulinum toxin type A
CI	Confidence interval
CPP	Chronic pelvic pain
DM	Diabetes mellitus
DMSO	Dimethyl sulfoxide
EAU	The European Association of Urology
EMDA	Electromotive drug administration
EMG-BFB	Electromyographic biofeedback
ESSIC	The International Society for the Study of BPS (formerly, European Society for the Study of Interstitial Cystitis)
GAG	Intravesical glycosaminoglycans
HBO	Hyperbaric oxygen
HT	Hypertension
HRQOL	Health-related quality of life
IASP	The International Association for the Study of Pain
IC	Interstitial cistitis
IPD-1151T	Suplatast tosilate
LD	Length of disease
RTX	Resiniferatoxin
SD	Standard deviation
TUR	Transurethral resection
UI	Urinary incontinence
UTI	Urinary tract infection