function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adrianov, Andrey V. & Murakami, Chisato & Shirayama, Yoshihisa', 2],
    ['Cook, Courtney A. & Netherlands, Edward C. & Van As, Johann', 2],
    ['Hummon, William D.', 2],
    ['Iseto, Tohru', 12],
    ['Kånneby, Tobias & Bernvi, David. C. & Jondelius, Ulf', 4],
    ['Lee, Jimin & Chang, Cheon Young', 2],
    ['Meyer-Wachsmuth, Inga & Curini-Galletti, Marco & Jondelius, Ulf', 9],
    ['Pardos, Fernando & Higgins, Robert P. & Benito, Jesús', 2],
    ['Rouse, Greg W. & Wilson, Nerida G. & Carvajal, Jose Ignacio', 4],
    ['Sørensen, Martin Vinther & Landers, Stephen C.', 2],
    ['Todaro, M. Antonio & Leasi, Francesca & Hochberg, Rick', 2],
    ['Westblad, E.', 2],
    ['Wright, T. S.', 3],
    ['de Buen, F.', 2],
    ['de Sena Oliveira, Ivo & Lacorte, Gustavo Augusto', 3],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    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);