function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bidzilya, Oleksiy V. & Budashkin, Yuri I.', 3],
    ['Bolt, Daniel & Grunder, Hans-Ueli & Schmid, Jürg', 1],
    ['Huemer, Peter & Van Nieukerken, Erik J.', 5],
    ['Kaila, Lauri', 840],
    ['Kaila, Lauri & Baran, Tomasz & Mutanen, Marko', 22],
    ['Kaila, Lauri & Mutanen, Marko', 2],
    ['Kaila, Lauri & Nupponen, Kari', 14],
    ['Kaila, Lauri & Sruoga, Virginijus', 3],
    ['Sruoga, Virginijus', 19],
    ['Sruoga, Virginijus & Kaila, Lauri & Rocienė, Agnė', 9],
    ['Sruoga, Virginijus & Kus, Arūnas Di Š', 6],
    ['Sruoga, Virginijus & Prins, Jurate De', 10],
    ['Sruoga, Virginijus & Sinev, Sergey Yu. & Rocienė, Agnė', 44],
    ['Sugisima, Kazuhiro', 3],
    ['Wieser, Christian', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=986)',
    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);