Hi I received a flier from Serbin to advertise in the Med. Ill. Source Book. It lists in the text that it combines Medical, Natural Science and Healthcare Photog. Is this in lieu of the GNSI Sourcebook, or has the GNSI decided to go back to doing their own? I also received a phone solicitation to advertise in same and said I would be interested in the GNSI Sourcebook .The sales person had idea what I was talking about. I'm not looking to submit at this time , but more curious at what is going on. Thanks, Nancy Creeden