function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernard, F.', 25],
    ['Clark, J.', 21],
    ['Emery, C.', 113],
    ['Forel, A.', 329],
    ['Jimoh, Bunmi Omowumi & Gomez, Kiko & Kemabonta, Kehinde Abike', 24],
    ['Lapeva-Gjonova, Albena & Antonova, Vera', 29],
    ['Mayr, G.', 73],
    ['McArthur, A. J.', 108],
    ['Rakotonirina, Jean Claude & Fisher, Brian L.', 54],
    ['Roger, J.', 28],
    ['Santschi, F.', 127],
    ['Seifert, Bernhard', 38],
    ['Ward, P. S.', 22],
    ['Wheeler, W. M.', 37],
    ['Wild, A. L.', 72],
    ['Other (55)', 325]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1425)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);