function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bian, Xun & Shi, Fu-Ming', 3],
    ['Buller, Walter L.', 1],
    ['Cadena-Castañeda, Oscar J. & Cortés-Torres, Carolina', 6],
    ['Cadena-Castañeda, Oscar J. & Gutiérrez, Yeisson & Bacca, Tito', 1],
    ['Cadena-Castañeda, Oscar J. & Monzón-Sierra, José', 10],
    ['Cadena-Castañeda, Oscar J. & Weissman, David B.', 9],
    ['Cadena-Castañeda, Rj. & Db. Weissman', 3],
    ['Dawwrueng, Pattarawich & Tan, Ming Kai & Artchawakom, Taksin', 2],
    ['Derka, Tomáš & Fedor, Peter', 3],
    ['Hollier, John', 7],
    ['Jewell, Tony', 2],
    ['Song, Qiong & Guo, Huifang & Bian, Xun & Shi, Fuming', 8],
    ['Tan, Ming Kai & Japir, Razy & Chung, Arthur Y. C.', 6],
    ['Wang, Han-Qiang & Liu, Xian-Wei', 2],
    ['Wang, Mengmeng & Liu, Xianwei & Li, Kai', 9],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=83)',
    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);