title: New study highlights questions surrounding spontaneous regression of tumors.
authors.forename: Karen
authors.initials: K
authors.lastname: Rowan
mesh_terms: D000367:Age Factors; D000818:Animals; D001706:Biopsy; D001943:Breast Neoplasms / Q000473:pathology* / Q000628:therapy; D018450:Disease Progression; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008593:Menopause; D009365:Neoplasm Regression, Spontaneous; D009376:Neoplasms, Hormone-Dependent / Q000473:pathology* / Q000628:therapy; D009664:Norway / Q000453:epidemiology; D011159:Population Surveillance; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000628:therapy; D012720:Severity of Illness Index