000			00338nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a338.47
100			_aWELSBROD,Burton A
245		0	_aEconomics and medical research
260			_bLondon. American Enterprise I _cns 1983
300			_a(xv),171p.
942			_cLL
999			_c5839 _d5839