function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barr, William F. & Rifkind, Jacques', 3],
    ['Ciegler, Janet C. & Gemmill, Robert M.', 1],
    ['Ivie, Michael A. & Spiessberger, Erich L.', 2],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 1],
    ['Leavengood, John M. & Garner, Beulah H.', 4],
    ['Majka, Christopher G.', 3],
    ['Opitz, Weston', 3],
    ['Pérez-Hernández, Cisteil Xinum', 9],
    ['Rifkind, Jacques', 53],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=80)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);