Task force report on the outcome of pregnancies and children conceived by in vitro fertilization (France: 1987 to 1989)**Task force group: Jean-Marie Antoine, M.D., (Hôpital Tenon, Paris, France); Paul Barrière, M.D., (Centre hospitalier universitaire, Nantes, France); Sylvie Bulwa, M.D., (Hôpital Saint-Vincent-de-Paul, Paris, France); Isabelle Cedrin-Durnerin, M.D., (Hôpital Jean-Verdier, Bondy, France); Anne de Crépi, M.D., (Hôpital Bichat, Paris, France); Jean-Bernard Dubuisson, M.D., (Hôpital Port-Royal, Paris, France); Sylvie Epelboin, M.D., (Hôpital Saint-Vincent-de-Paul, Paris, France); Hervé Foulot, M.D., (Hôpital Port-Royal, Paris, France); Christine Francoual, M.D., (Hôpital Saint-Vincent-de-Paul, Paris, France); Arlette Guichard,