g37_a
G37 AField Label
if not known: when did the (oc and related sxs) begin? were you already using (substance/medication) or had you just stopped or cut down your use?
Branching Logic
[g35] <> '1' and [g11_gmc] = '1' and [g36] <> '1'
Field Label
if not known: when did the (oc and related sxs) begin? were you already using (substance/medication) or had you just stopped or cut down your use?
Branching Logic
[g35] <> '1' and [g11_gmc] = '1' and [g36] <> '1'