Thanks to ADResearchInitiative blog for the tip on this message.
On another note, our family is off to E Africa for 3 weeks to give lectures (me, viruses and mental health; wife Carolyn, special education) in Uganda, Kenya and Tanzania. We are also looking forward to touring national parks, including tracking mountain gorillas in Biwindi. So I’ll be out of touch till July, but may come back with some interesting stories.