Restriction of HIV-1 genotypes in breast milk does not account for the population transmission genetic bottleneck that occurs following transmission. oleh Laura Heath, Susan Conway, Laura Jones, Katherine Semrau, Kyle Nakamura, Jan Walter, W Don Decker, Jason Hong, Thomas Chen, Marintha Heil, Moses Sinkala, Chipepo Kankasa, Donald M Thea, Louise Kuhn, James I Mullins, Grace M Aldrovandi