function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 1],
    ['Born, Ignaz von', 1],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 1],
    ['Geiger, Daniel L.', 1],
    ['Koppka, Jens', 1],
    ['Linnaeus, Carolus', 30],
    ['Locard, A.', 1],
    ['Logan, W. N.', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 2],
    ['Moore, Charles', 1],
    ['Musavu Moussavou, Benjamin', 2],
    ['Oliver, P. Graham & Holmes, Anna & Killeen, Ian & Light, Janice', 1],
    ['Olivi, Giuseppe', 1],
    ['Rothpletz, (Friedrich) August & Simonelli, V.', 1],
    ['Sowerby, James DeCarle', 3],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);