function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Botero, Juan Pablo & Tavakilian, Gérard L. & Seidel, Matthias', 1],
    ['Georgiev, Georgi & Sakalian, Vladimir & Mirchev, Plamen', 1],
    ['Ilić, Nastas & Ćurčić, Srećko', 1],
    ['Linnaeus, Carolus', 58],
    ['Müller, Otto Friedrich', 1],
    ['Napp, Dilma Solange & Mermudes, José Ricardo M.', 1],
    ['Poda, Nicolaus', 1],
    ['Retzius, Anders Ja ̊ han', 1],
    ['Schedl, W.', 3],
    ['Schrank, Franz von Paula', 1],
    ['Scopoli, G. A.', 1],
    ['Slama, M.', 4],
    ['Stefanelli, Silvia & Della Rocca, Francesca & Bogliani, Giuseppe', 2],
    ['Weber, Friedrich', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=77)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);