function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brescovit 1, Antonio Domingos & Zampaulo 2, Robson de Almeida', 4],
    ['Brescovit, Antonio D. & Cizauskas, Igor & Mota, Leandro P.', 8],
    ['Brescovit, Antonio Domingos & Zampaulo, Robson De Almeida', 3],
    ['Castanheira, Pedro De Souza & Pérez-González, Abel', 4],
    ['Chang, Wan-Jin & Li, Fengyuan & Li, Shuqiang', 9],
    ['Dupérré, Nadine', 16],
    ['Li, Fengyuan & Liu, Chang & Li, Shuqiang', 11],
    ['Lin, Yejie & Zhao, Huifeng & Koh, Joseph K H & Li, Shuqiang', 3],
    ['Liu, Chang & Li, Fengyuan & Li, Shuqiang & Zheng, Guo', 4],
    ['Liu, Chang & Li, Fengyuan & Wongprom, Prasit & Zheng, Guo', 12],
    ['Tong, Yanfeng & Li, Fengyuan & Song, Yang & Chen, Haifeng', 33],
    ['Tong, Yanfeng & Li, Shuqiang', 7],
    ['Valdez-Mondragón, Alejandro & Chamé-Vázquez, David', 3],
    ['Wang, Chunxia & Li, Shuqiang', 6],
    ['Xu, Mingjie & Li, Fengyuan & Li, Shuqiang', 6],
    ['Other (7)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=138)',
    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);