Henson v. NaturMed, Inc.et al  ·  2021-04-09  ·  D. Maryland  ·  pin 61 Md. App. at 23

“The general rule is well established that expert testimony is . . . required when the subject of the inference is so particularly related to some science or profession that it is beyond the ken of the average layman.”

Barbara A. Koch, Individually James P. Koch, as Husband and Wife v. Sports Health Home Care Corporation, D/B/A Medi  ·  1995-05-15  ·  Fourth Circuit  ·  pin 61 Md. App. at 23

"An inference of a defect may be drawn from the happening of an accident, where circumstantial evidence tends to eliminate other causes, such as product misuse or alteration."