Breadcrumb Papers Combined morphological and histochemical techniques for the study of neuronal microcircuits Combined morphological and histochemical techniques for the study of neuronal microcircuits Bolam JP Ingham CA Citation 1990. , (): . Breadcrumb Papers Combined morphological and histochemical techniques for the study of neuronal microcircuits Combined morphological and histochemical techniques for the study of neuronal microcircuits Bolam JP Ingham CA Citation 1990. , (): .