Pie chart of percent mean relative abundance of microbial composition as determined by pyrosequencing A) Phylum B) Family level (with percent relative abundance of more than 1%), at First trimester (T1) and at Second trimester (T2) compared between Secretors and Non-secretors. KumarHimanshu WacklinPirjo NakphaichitMassalin LoyttyniemiEliisa ChowdhurySomak ShoucheYogesh MättöJaana IsolauriErika SalminenSeppo 2015 <p>Pie chart of percent mean relative abundance of microbial composition as determined by pyrosequencing A) Phylum B) Family level (with percent relative abundance of more than 1%), at First trimester (T1) and at Second trimester (T2) compared between Secretors and Non-secretors.</p>