Fig. 1
From: Going web or staying paper? The use of web-surveys among older people
Timeline for data collection in the Health, Ageing and Retirement Transitions in Sweden study (HEARTS)
Fig. 1 | BMC Medical Research Methodology
From: Going web or staying paper? The use of web-surveys among older people
Timeline for data collection in the Health, Ageing and Retirement Transitions in Sweden study (HEARTS)