function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chatterjee, Tapas & Dovgal, Igor', 16],
    ['Chatterjee, Tapas & Dovgal, Igor & Fernandez-Leborans, Gregorio', 29],
    ['Chatterjee, Tapas & Dovgal, Igor & Fontaneto, Diego', 9],
    ['Chatterjee, Tapas & Dovgal, Igor & Mayén-Estrada, Rosaura', 29],
    ['Clamp, John C. & Kane, John R.', 9],
    ['Durán-Ramírez, Carlos Alberto & Dias, Roberto Júnio Pedroso', 37],
    ['Mayén-Estrada, Rosaura & Clamp, John C.', 84],
    ['Mayén-Estrada, Rosaura & Dias, Roberto Junio Pedroso', 77],
    ['Mayén-Estrada, Rosaura & Pinto Utz, Laura R.', 88],
    ['Müller, Otto Friedrich', 45],
    ['Nana, Paul Alain & Tchakonte, Simeon & Mama, Anselme Crepin', 7],
    ['Porto, Ana Victoria Dunke & Rigo, Francine Vargas & Warren, Alan', 196],
    ['Souza, Pedro Mendes De & Rossi, Mariana Fonseca', 45],
    ['Spence, John R.', 7],
    ['Xuming Pan', 14],
    ['Other (55)', 123]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=815)',
    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);