Variations in animal populations over time and differences in diagnostic thresholds used can impact tumor incidence data.
D000818:Animals; D015197:Carcinogenicity Tests / Q000379:methods*; D005260:Female; D015994:Incidence; D009374:Neoplasms, Experimental / Q000139:chemically induced* / Q000453:epidemiology; D010281:Parathyroid Hormone / Q000633:toxicity*; D051381:Rats; D011916:Rats, Inbred F344; D011994:Recombinant Proteins / Q000633:toxicity
D010281:Parathyroid Hormone; D011994:Recombinant Proteins