I wonder if the studies that do find weak correlations (but are rarely replicated) also ask the participants about air travel, where one is exposed to ionizing

I wonder if the studies that do find weak correlations (but are rarely replicated) also ask the participants about air travel, where one is exposed to ionizing radiation (both from the higher altitudes and backstar x-ray, etc..) I.e., frequent air-travelers could be more frequent cell phone users.