004720000a22001570004500003000900000005001700009020001800026100003100044245004300075264008600118300001000204490005800214041000800272650002100280650001300301PH-MaWHO20241108112135.0  a92-9020-106-1  aAndersen K L ... [et al.].  aHabitual physical activity and health.  aCopenhagen : bWorld Health Organization (WHO) Regional Office for Europe,c1978.  a188p.  a(WHO Regional publications, European series ; no. 6).  aeng  aPhysical fitness  aExertion