All
 D12 Amino Acids, Peptides, and Proteins D000602 +
 D12.776 Proteins D011506 +
 D12.776.124 Blood Proteins D001798 +
 D12.776.124.486 Immunoproteins D007162 +
 D12.776.124.486.274 Complement D003165 +
 D12.776.124.486.274.860 Complement Activating Enzymes D003166 +
 D12.776.124.486.274.920 Complement Inactivators D003169 +
 D12.776.124.486.274.050 Complement 1 D003172 +
 D12.776.124.486.274.150 Complement 2 D003175 
 D12.776.124.486.274.250 Complement 3 D003176 
 D12.776.124.486.274.350 Complement 4 D003181 +
 D12.776.124.486.274.450 Complement 5 D003182 +
 D12.776.124.486.274.550 Complement 6 D003183 
 D12.776.124.486.274.650 Complement 7 D003184 
 D12.776.124.486.274.750 Complement 8 D003185 
 D12.776.124.486.274.850 Complement 9 D003186 
 D12.776.124.486.274.900 Complement Factor B D011415 
 D12.776.124.486.274.930 Complement Membrane Attack Complex D015938