function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aristov, D. S.', 2],
    ['Barros-Barreto, Maria Beatriz & Jaramillo, Maria Alejandra', 36],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 2],
    ['Costanzo, Luca Giuseppe & Marletta, Giuliana', 2],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Florence Rousseau & Delphine Gey & Akira Kurihara', 4],
    ['Freese, Jillian M. & Lane, Christopher E.', 5],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Heiss, Ernst & Eckelt, Andreas & Lederwasch, Manfred', 2],
    ['Jarvis, Charlie', 12],
    ['Kang, Jeong Chan & Lee, Hyung Woo & Kim, Myung Sook', 2],
    ['Metti, Yola & Furnari, Giovanni & Serio, Donatella', 4],
    ['Piñeiro-Corbeira, Cristina & Maggs, Christine A. & Rindi, Fabio', 6],
    ['Schneider, Craig W. & Saunders, Gary W.', 4],
    ['de Clerck, Olivier & Coppejans, Eric & Schils, Tom', 21],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=119)',
    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);