Process for the preparation of microspherical sintered bodies of hydroxyapatite and a chromatographic packing material comprising {HEAD ~ the microspherical sintered bodies} of {TAIL ~ hydroxyapatite} 
of
Process for the preparation of microspherical sintered bodies of hydroxyapatite and a chromatographic packing material comprising { HEAD ~ the microspherical sintered bodies } of { TAIL ~ hydroxyapatite }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL