“…Those ongoing interactions reflect a clear distinction between the studies I followed and one-time tissue samples procured in genomic studies or shared anonymously by databanks. My ongoing research on MARBLES therefore provided a unique window onto the emergent relationships, motivations and circulations of knowledge among study staff, mothers, children, Principal Investigators, and larger scientific and autism communities (see Beck and Niewöhner, 2006;Monahan and Fisher, 2010;Niewöhner, 2011;Pickersgill, 2012). I analyzed all data, including interview transcripts, field notes and documents, using the principles of grounded theory (Glaser and Strauss, 1967;Strauss, 1987;Strauss and Corbin, 1998;Charmaz, 2006) and situational analysis (Clarke, 2005).…”