function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baker, C. F.', 1],
    ['Falaschi, Rafaela Lopes & Oliveira, Sarah Siqueira', 8],
    ['Fitzgerald, Scott J.', 2],
    ['Fitzgerald, Scott J. & González, Christian R & Elgueta, Mario', 33],
    ['Haenni, Jean-Paul', 6],
    ['Harris, Anthony C.', 1],
    ['Harrison, Roy A.', 3],
    ['Meigen, Johann Wilhelm', 1],
    ['NEL, ANDRÉ & LEGAL, STÉPHANE & COSTER, PAULINE', 1],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 1],
    ['Skartveit, John', 6],
    ['Skartveit, John & Freidberg, Amnon', 16],
    ['Skartveit, John & Krizmanić, Katarina', 1],
    ['Skartveit, John & Nel, André', 1],
    ['Skartveit, John & Wedmann, Sonja', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=85)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);