function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cranston, Peter S.', 1],
    ['Epler, John H.', 1],
    ['Liu, Wen-Bin & Wang, Ying & Zhao, Kang-Zhu & Wang, Cheng-Yan', 3],
    ['Mendes, Humberto Fonseca & Pinho, Luiz Carlos', 2],
    ['Mukherjee, Bindarika & Hazra, Niladri', 2],
    ['Orel, Oksana V.', 4],
    ['Tasdemir, Ayse & Akyildiz, Gurcay Kivanc', 7],
    ['Trivinho-Strixino, Susana & Silva, Fabio Laurindo Da', 7],
    ['Yan, Chun-Cai & Yan, Jiao & Jiang, Li & Guo, Qin & Liu, Ting', 5],
    ['Yan, Chuncai & Saether, Ole A. & Jin, Zhaohui & Wang, Xinhua', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);