Authors: Alexander K Li; Kenneth E Covinsky; Laura P Sands; Richard H Fortinsky; Steven R Counsell; C Seth Landefeld Journal: J Gen Intern Med Date: 2005-02 Impact factor: 5.128
Authors: Caroline Main; Sian Thomas; David Ogilvie; Lisa Stirk; Mark Petticrew; Margaret Whitehead; Amanda Sowden Journal: BMC Public Health Date: 2008-05-27 Impact factor: 3.295