00738nam a22002537i 450000500170000000800410001702200220005802200230008004100080010310000190011124501030013065000170023365000220025065000220027265000130029465000200030765000210032765000190034865100110036765300120037865500150039070000110040577300680041620141212093124.0900726s1990    sp     gr     000 0 spa c  a1079-5006 (papel)  a1758-535X (online)  aeng1 aBERGEMAN, C.S.10aGENETIC AND ENVIRONMENTAL INFLUENCES ON SOCIAL SUPPORT: THE SWEDISH ADOPTION / TWIN STUDY OF AGING14aApoyo social14aEcología social14aFactores sociales14aHerencia14aInvestigación14aPersonas mayores14aSociogénesis14aSuecia10aMayores 4aDocumental1 aET AL.0 tJOURNALS OF GERONTOLOGY,THEgVol. 45, no. 3 (1990), p. P101-106