function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barkalov, Anatolii V. & Negrobov, Oleg P. & Ya, Igor', 3],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 5],
    ['Germann, Christoph & Kahanpää, Jere & Pollet, Marc', 3],
    ['Grichanov, I. Ya. & Selivanova, O. O.', 29],
    ['Kahanpaeae, Jere', 10],
    ['Kahanpää, Jere', 10],
    ['Kechev, Mihail & Naglis, Stefan & Tonguç, Alper & Pollet, Marc', 42],
    ['Meigen, Johann Wilhelm', 33],
    ['Negrobov, Oleg P. & Grichanov, Igor Ya. & Barkalov, Anatolii V.', 7],
    ['Negrobov, Oleg P. & Selivanova, Olga V. & Maslova, Olga O.', 5],
    ['Pollet, Marc & Andrade, Rui & Gonçalves, Ana & Andrade, Pedro', 18],
    ['Pollet, Marc & Ivković, Marija', 9],
    ['Runyon, Justin B.', 13],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 4],
    ['Zhang, Lili & Yang, Ding', 7],
    ['Other (22)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=234)',
    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);