According to various embodiments a method of withdrawing {TAIL ~ a material} directly from a patient and collecting a selected fraction of the material in {HEAD ~ a container} is taught 
According to various embodiments a method of withdrawing { TAIL ~ a material } directly from a patient and collecting a selected fraction of the material in { HEAD ~ a container } is taught
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH