Pseudoephedrine and triprolidine in plasma and breast milk of nursing mothers.

nork Findlay, J W, Butz, R F, Sailstad, J M, Warren, J T, Welch, R M
Argitaratua 1984

Comparative disposition of codeine and pholcodine in man after single oral doses.

nork Findlay, J W, Fowle, A S, Butz, R F, Jones, E C, Weatherley, B C, Welch, R M, Posner, J
Argitaratua 1986