function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Africa, C. M. & Garcia, E. Y.', 1],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 2],
    ['Ferguson, Jayde A. & Locke, Sean A. & Font, William F.', 1],
    ['Leonov, V. A.', 1],
    ['Lyster, L. L.', 1],
    ['Morosov, F. N.', 1],
    ['Price, E. W.', 1],
    ['Ransom, Brayton Howard', 1],
    ['Rayski, C. & Fahmy, M. A. M.', 1],
    ['Van Cleave, H. J. & Mueller, Justus F.', 1],
    ['Warren, B. H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);