function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amaral, Fernanda M. D. & Steiner, Andrea Q.', 3],
    ['Boissin, E. & Pogoreutz, C. & Pey, A. & Gravier-Bonnet, N.', 1],
    ['Ehrenberg, Christian Gottfried', 1],
    ['Ellis, John & Solander, Daniel Carl', 1],
    ['Fassbender, Nico & Stefanoudis, Paris V', 1],
    ['Forsskål, Peter', 1],
    ['Linnaeus, Carolus', 11],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 8],
    ['Pallas, Peter Simon', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);