function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Schnedl, Sara-Maria & Eschner, Anita', 1],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 2],
    ['Ameron', 3],
    ['Fischer, M.', 1],
    ['Ivanova, Mariya B. & Tsurpalo, Alexandra P.', 8],
    ['Lam, Katherine & Morton, Brian & Leung, K. F.', 2],
    ['Lützen, Jørgen & Nielsen, Claus', 5],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Oliver, P. Graham', 6],
    ['Oliver, P. Graham & Holmes, Anna', 7],
    ['Oliver, P. Graham & Holmes, Anna & Killeen, Ian & Light, Janice', 6],
    ['Raines, Bret & Huber, Markus', 14],
    ['Tubtimon, Jaruwan & Jeratthitikul, Ekgachai', 4],
    ['Valentich-Scott, Paul & Goddard, Jeffrey H. R.', 2],
    ['Valentich-Scott, Paul & O Foighil, Diarmaid & Li, Jingchun', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=66)',
    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);