Description: Segment 1 Landon briefly recounts the content of his previous lecture on the same subject area. He then shows a table listing all the current uses of radioimmunoassays, then a further table relating to which hormones and proteins radioimmunoassays can be used for. Time start: 00:00:00:00 Time end: 00:05:45:00 Length: 00:05:45:00 Segment 2 Landon looks, in detail, at a long series of assay studies by various international researchers and recounts their results. Time start: 00:05:45:00 Time end: 00:10:35:17 Length: 00:04:50:17 Segment 3 Landon continues to show the results of different assay experiments from across the globe. Time start: 00:10:35:17 Time end: 00:15:16:17 Length: 00:04:41:00 Segment 4 Landon talks further about different assay experiments from various international researchers. He then focuses on a radioimmunoassay study for HPL in pregnancy Time start: 00:15:16:17 Time end: 00:19:00:18 Length: 00:03:44:01 Segment 6 Landon discusses hormones further, then shows more charts detailing the results of various assay experiments. Time start: 00:26:07:18 Time end: 00:31:57:00 Length: 00:05:49:07. Segment 7 Landon focuses, in particular, on an assay study for the hormone digoxin. He then sums up the lecture and concludes with an optimistic outlook for chemists: The future of medicine lies in the laboratory and not at the bedside. Time start: 00:31:57:00 Time end: 00:37:56:03 Length: 00:05:59:03