by Watkins, Eren Youmans, Spiess, Anita, Abdul-Rahman, Ihsan, Hill, Christopher, Gibson, Nkechinyere, Nichols, Jerrica, McLeod, Vanessa, Johnson, Latoya, Mitchell, Trevor, Pecko, Joseph Anton, Cox, Kenneth
Published in American journal of public health (1971) (01.06.2018)

by McLeod, Vanessa
Published in Edmonton journal (28.11.2001)

by McLeod, Vanessa
Published in Edmonton journal (28.06.2000)