function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gornostaev, N. G. & Kulikov, A. M.', 2],
    ['Gornostaev, N. G. & Lyupina, Yu. V.', 2],
    ['Gornostaev, N. G. & Sorokina, S. Yu.', 2],
    ['Huang, Jia & Chen, Hongwei', 7],
    ['Huang, Jia & Li, Tong & Chen, Hongwei', 28],
    ['Huang, Jia & Li, Tong & Gao, Jianjun & Chen, Hongwei', 20],
    ['Huang, Jia & Su, Yirui & Chen, Hongwei', 19],
    ['Huang, Jia & Wang, Yalian & O’Grady, Patrick Michael & Su, Yirui', 21],
    ['Jens-H', 2],
    ['Matsumura, Shonen', 1],
    ['Rampasso, Augusto Santos & O’Grady, Patrick Michael', 1],
    ['Sidorenko, V. S.', 1],
    ['Su, Yirui & Lu, Jinming & Chen, Hongwei', 4],
    ['Tidon, Rosana & Almeida, Jonathan Mendes De', 2],
    ['Zhou, Lan & Chen, Hong-Wei', 9],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=123)',
    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);