age; Carcinoma, Small Cell
Item
subjects between 50 and 75 years old without history of previous scc or bcc.
boolean
C0001779 (UMLS CUI [1])
C0262584 (UMLS CUI [2])
Fitzpatrick classification of skin type
Item
fitzpatrick skin types i-iv.
boolean
C2732923 (UMLS CUI [1])
informed consent
Item
willing and able to understand and sign informed consent.
boolean
C0021430 (UMLS CUI [1])
compliance behavior
Item
able to complete study and comply with study procedures
boolean
C1321605 (UMLS CUI [1])
Dietary Supplements
Item
regular ingestion of supplements containing carotenoids or vitamin a in the past 4 weeks.
boolean
C0242295 (UMLS CUI [1])
Retinoids topical
Item
use of topical retinoids in the past 4 weeks.
boolean
C0035339 (UMLS CUI [1,1])
C1522168 (UMLS CUI [1,2])
retinoids systemic
Item
treatment with systemic retinoids in the past 6 months.
boolean
C0035339 (UMLS CUI [1,1])
C0205373 (UMLS CUI [1,2])
comorbidity dermatologic
Item
dermatologic conditions that require the use of interfering topical or systemic therapy or that might interfere with study assessments such as, but not limited to, palmar psoriasis, hand dermatitis or palmo-plantar keratoderma.
boolean
C0009488 (UMLS CUI [1,1])
C0205489 (UMLS CUI [1,2])
psoriasis
Item
previous history of psoriasis.
boolean
C0033860 (UMLS CUI [1])
compliance behavior limited comorbidity
Item
clinically significant abnormal findings or conditions, which might, in the opinion of the principal investigator, interfere with study evaluations or pose a risk to subject safety during the study.
boolean
C1321605 (UMLS CUI [1,1])
C0439801 (UMLS CUI [1,2])
C0009488 (UMLS CUI [1,3])
pregnancy
Item
subjects who are known to be pregnant or planning a pregnancy.
boolean
C0549206 (UMLS CUI [1])