function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, Ayashaa & Sharma, K. K. & Mohanasundaram, A.', 1],
    ['Ahmad, Ayashaa & Sharma, K. K. & Vidyarthi, A. S. & Ramani, R.', 3],
    ['Bashir, Nawaz Haider & Wang, Weiwei & Liu, Juan & Wang, Wei', 1],
    ['Chamberlin, Joseph Conrad', 1],
    ['Hodgson, Chris', 5],
    ['Kondo, Takumasa & Gullan, Penny J.', 15],
    ['Kondo, Takumasa & Gullan, Penny J. & Pemberton, Robert W.', 1],
    ['Kondo, Takumasa & Muñoz, Jazmín Adriana', 1],
    ['Martin, Jon H. & Lau, Clive S. K.', 1],
    ['Matsunaga, Janis N. & Howarth, Francis G.', 1],
    ['Rajgopal, N. N. & Mohanasundaram, Arumugam', 2],
    ['Williams, D. J.', 1],
    ['Williams, Douglas J. & Ben-Dov, Yair', 1],
    ['Williams, Douglas J. & Miller, Douglass R.', 1],
    ['Zuparko, Robert L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);