function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fan, Long Fei & Pu, Jin Bao & Wu, Fang & Dai, Yu Cheng', 1],
    ['Fan, Long-Fei & Alvarenga, Renato Lucio Mendes', 5],
    ['Jarvis, Charlie', 1],
    ['Li, A. - H. & Yuan, F. - X. & Groenewald, M. & Bensch, K.', 2],
    ['Millanes, Ana M. & Diederich, Paul & Westberg, Martin', 10],
    ['Thomas, Anjitha & Kumar, T. K. Arun', 1],
    ['Westberg, Martin & Timdal, Einar & Asplund, Johan', 2],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 1],
    ['Zhang, Xiaojie & Yuan, Qi & Su, Jiangqing & Zhao, Changlin', 1],
    ['Zhao, Ying & Liu, Xin-zhan & Bai, Feng-yan', 4],
    ['de la Fuente, Javier Isaac & García-Jiménez, Jesús', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);