Not to belabour the point, but you would consider it ethical for women in a study (who have no known risk for low milk supply) be told not to breastfeed their infants for four days and only pump in order only to measure the output? All other things aside, that's not a design I consider acceptable.
***********************************************
Archives: http://community.lsoft.com/archives/LACTNET.html
To reach list owners: [log in to unmask]
Mail all list management commands to: [log in to unmask]
COMMANDS:
1. To temporarily stop your subscription write in the body of an email: set lactnet nomail
2. To start it again: set lactnet mail
3. To unsubscribe: unsubscribe lactnet
4. To get a comprehensive list of rules and directions: get lactnet welcome