There are 8 studies that match your criteria.
Criteria: Freq Range=300 kHz - 300 GHz (RF/mmW/THz),Study Type=Epidemiology,Study Subtype=Cohort Cancer Study,Status=Ongoing

Details - Project ID 764
Lab	University of Bristol, England
Study Design	900, 1800 MHz (GSM) base station exposure to residents and correlation with childhood cancer and leukemia
Summary	(ongoing)
Citation
Details - Project ID 891
Lab	Imperial College School of Med, UK
Study Design	COSMOS - 900, 1800 MHz (NMT, GSM, W-CDMA) mobile phone use in Finland, Sweden, Denmark, Holland, and Great Britain and correlation with malignant tumors, heart disease, neuro-degenerative disease (Parkinson's disease, MS, ALS), eye and skin disease, and tinnitus
Summary	(ongoing)
Citation	Schuz, J et al. Cancer Epidemiol., (2011) 35:37-43 Toledano, MB et al. PLoS ONE., (2015) 10(7)::doi:10.1371/journal.-pone.0131521 Toledano, MB et al. Int J Epidemiol., (2015) [Epub ahead of print]:1-13 Toledano, MB et al. International Journal of Hygiene and Environmental Health., (2018) 221:1-8 Auvinen, A et al. International Journal of Epidemiology., (2019) 48:1567-1579 Auvinen, A et al. . International Journal of Epidemiology., (2019) :- , , () :-
Details - Project ID 1039
Lab	Imperial College, UK
Study Design	450 MHz (Tetra) exposure to police and correlation with cancer incidence and brain function
Summary	(ongoing)
Citation
Details - Project ID 1102
Lab	Austrian Research Center, Seibersdorf
Study Design	BASEXPO: 900, 1800 MHz (GSM) exposure to residents in Austria from base stations and correlation with health effects
Summary	(ongoing)
Citation
Details - Project ID 1135
Lab
Study Design	400 MHz (Tetra) exposure to UK police and correlation with health and cancer
Summary	Ongoing health monitoring of the UK Police force (n=100,000) over a 15 year period (Airwave health study)
Citation
Details - Project ID 1356
Lab	Dankook University College of Medicine, Korea
Study Design	Crew members on ocean vessels exposed long-term to radar and other RF sources and correlations with cognitive function and cancer
Summary	RF Exposure from Radar in Ships and Ocean Crews
Citation
Details - Project ID 1614
Lab	Univ Malay, Malaysia
Study Design	mobile phone use by children and assessment of perceived health concerns
Summary
Citation
Details - Project ID 1694
Lab	Univ. Bern & Inst. Social Prev. Med, Univ. Basel,
Study Design	Mobile phone, base station and RF source exposure and analysis of various endpoints in a prospective cohort study
Summary
Citation