function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blanchard, E. E.', 1],
    ['Blanchard, Émile', 1],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 1],
    ['Ebejer, M. J.', 11],
    ['El-Hawagry, Magdi S. & Abdel-Dayem, Mahmoud S.', 1],
    ['Evenhuis, Neal L.', 1],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Fallén, Carl Fredrik', 4],
    ['Gaimari, Stephen D.', 25],
    ['Gaimari, Stephen D. & González, Christian R. & Elgueta, Mario', 20],
    ['Gaimari, Stephen D. & Havill, Nathan P.', 30],
    ['Panzer, Georg Wolfgang Franz', 2],
    ['Raspi, Alfio', 20],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 15],
    ['Wheeler, Terry A. & Sinclair, Bradley J.', 10],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=150)',
    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);